microblaze: Clear sticky FSR register after generating exception signals
microblaze: Clear sticky FSR register after generating exception signals

FSR is sticky, so after the userspace exception/signal generation, clear
it ready for next time.

Signed-off-by: John Williams <a8572cb80e874659613ad84b041240d805ae9760@petalogix.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas