Updated linux-rt package for Lucid

[Alessio Igor Bogani]

Dear Kernel Team,

I have updated linux-rt package and placed it in my PPA at:
https://launchpad.net/~abogani/+archive/broken

Brief review of changes from previous release (10.153):
*) Ubuntu Karmic 2.6.31-21.59 is used as base for this kernel for
offer latest general improvements and security fixes.
*) Update the PREEMPT_RT patchset support from rt19 to rt21. This for
fix some "Scheduling while atomic" bugs like:
https://bugs.launchpad.net/ubuntu/+source/linux-rt/+bug/499033
https://bugs.launchpad.net/ubuntu/+source/linux-rt/+bug/540960
And for fix a CPU excessive usage bug:
https://bugs.launchpad.net/ubuntu/+source/linux-rt/+bug/523319

Ciao,
Alessio