[SRU][F:linux-bluefield][PATCH v1 0/1] UBUNTU: SAUCE: mlxbf-bootctl: support SMC call for setting ARM boot state

[Asmaa Mnebhi]

BugLink: https://bugs.launchpad.net/bugs/2013383

SRU Justification:

[Impact]

Add a new SMC call which allows setting the ARM boot progress state to "OS is up".

[Fix]

* Add a new SMC call in mlxbf-bootctl which allows setting the ARM boot progress state to "OS is up".

[Test Case]

* Check that /sys/devices/platform/MLNXBF04:00/driver/os_up exists

[Regression Potential]

* No known regression because it is just adding a sysfs entry. It is backward
  compatible with older TAF images. If the SMC call is not supported by ATF, it is ignored.