Bug 919901: update 2.6 kernel for ARMv7

-from commit e2ba18df308001e1dcba97ba932c92ff33a53cbe
-Clear the IT state when invoking a Thumb-2 signal handler
Merge pull request #2 from vicamo/bugzilla/919901/emulator-thumb2-signal-handler

Bug 919901: update 2.6 kernel for ARMv7