pull request for raspi2 eoan kernel (set 2 falvours for armhf and change flavour name to raspi4 for arm64)

[Hui Wang]

BugLink: https://bugs.launchpad.net/bugs/1853446

[Impact]
It is risky to use single armhf kernel to support rpi2/3/4, since
upstream has a specific config for rpi2/3 and another config for rpi4,
the major difference are LPAE, HIGHMEM and VMSPLIT_3G, we already
met a bug that is intrduced by HIGHMEM and VMSPLIT_3G on rpi2/3,
so add two falvours for rpi2/3 and rpi4.
flavour 1: raspi2 (for rpi2/3, disable LPAE, HIGHMEM and VMSPLIT_3G)
flavour 2: raspi4 (for rpi4, enable LPAE, HIGHMEM and VMSPLIT_3G)

For arm64 kernel, we change the flavour name to raspi4, it supports
rpi2/3/4.

[Fix]
Change the related configuration files in the debian.raspi2.


[Test Case]
After apply the patches, and I built two flavours of armhf and
arm64 kernels, Then check the .config, they all meet the expectation.
And boot those kernels on the rpi2/3/4 boards. worked well.

[Regression Risk]
Low, just change the flavour name for arm64, and for armhf, the
flavour raspi4 is basically same as bofre (raspi2), the new flavour
raspi2 just disable LPAE/HIGHMEM/VMSPLIT_3G, it is same as the config
for rpi2/3 in the upstream.

The following changes since commit c1a0780b4dd5a9bfdf828d024194156d0ea45774:

   UBUNTU: [Packaging] raspi2: Fix snapcraft.yaml (2019-11-13 10:37:29 
+0100)

are available in the Git repository at:

https://github.com/jason77-wang/eoan-rpi4.git:Ubuntu-raspi2-lp1853446

for you to fetch changes up to b557f61befe948366fde6f25befd34fdb6af0d89:

   UBUNTU: SAUCE: abi: change the abi name to raspi4 for arm64 kernel 
(2019-11-21 20:59:39 +0800)

----------------------------------------------------------------
Hui Wang (4):
       UBUNTU: SAUCE: add one more flavour to armhf kernel
       UBUNTU: SAUCE: ABI: add abi for the flavour raspi4 on armhf kernel
       UBUNTU: SAUCE: change the flavour name to raspi4 on arm64 kernel
       UBUNTU: SAUCE: abi: change the abi name to raspi4 for arm64 kernel

  debian.raspi2/abi/5.3.0-1011.12/arm64/{raspi2 => 
raspi4}                     |     0
  debian.raspi2/abi/5.3.0-1011.12/arm64/{raspi2.compiler => 
raspi4.compiler}   |     0
  debian.raspi2/abi/5.3.0-1011.12/arm64/{raspi2.modules => 
raspi4.modules}     |     0
  debian.raspi2/abi/5.3.0-1011.12/arm64/{raspi2.retpoline => 
raspi4.retpoline} |     0
  debian.raspi2/abi/5.3.0-1011.12/armhf/raspi4 | 19968 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  debian.raspi2/abi/5.3.0-1011.12/armhf/raspi4.compiler |     1 +
  debian.raspi2/abi/5.3.0-1011.12/armhf/raspi4.modules |  4292 
+++++++++++++++++++++++++
  debian.raspi2/abi/5.3.0-1011.12/armhf/raspi4.retpoline |     1 +
  debian.raspi2/config/arm64/config.flavour.raspi2 |     3 -
  debian.raspi2/config/arm64/config.flavour.raspi4 |     3 +
  debian.raspi2/config/armhf/config.common.armhf |     2 -
  debian.raspi2/config/armhf/config.flavour.raspi2 |     7 +
  debian.raspi2/config/armhf/config.flavour.raspi4 |    10 +
  debian.raspi2/config/config.common.ubuntu |     9 +-
  debian.raspi2/control.d/vars.raspi4 |     6 +
  debian.raspi2/etc/getabis |     4 +-
  debian.raspi2/rules.d/arm64.mk |     2 +-
  debian.raspi2/rules.d/armhf.mk |     2 +-
  18 files changed, 24296 insertions(+), 14 deletions(-)
  rename debian.raspi2/abi/5.3.0-1011.12/arm64/{raspi2 => raspi4} (100%)
  rename debian.raspi2/abi/5.3.0-1011.12/arm64/{raspi2.compiler => 
raspi4.compiler} (100%)
  rename debian.raspi2/abi/5.3.0-1011.12/arm64/{raspi2.modules => 
raspi4.modules} (100%)
  rename debian.raspi2/abi/5.3.0-1011.12/arm64/{raspi2.retpoline => 
raspi4.retpoline} (100%)
  create mode 100644 debian.raspi2/abi/5.3.0-1011.12/armhf/raspi4
  create mode 100644 debian.raspi2/abi/5.3.0-1011.12/armhf/raspi4.compiler
  create mode 100644 debian.raspi2/abi/5.3.0-1011.12/armhf/raspi4.modules
  create mode 100644 debian.raspi2/abi/5.3.0-1011.12/armhf/raspi4.retpoline
  delete mode 100644 debian.raspi2/config/arm64/config.flavour.raspi2
  create mode 100644 debian.raspi2/config/arm64/config.flavour.raspi4
  create mode 100644 debian.raspi2/config/armhf/config.flavour.raspi4
  create mode 100644 debian.raspi2/control.d/vars.raspi4

-- 
2.17.1