Revert "Fix for update to linux 3.4.73"

This reverts commit 579c096fa6e353f028e535b44d168911ef337cd2.
Revert "arm: makefile: use -mcpu=cortex-a15 when targeting MSM Krait CPUs"

This reverts commit 86d77a75412de4843764e49e488c192a1e4fed83.
Revert drivers/mmc/card/block.c patch in linux 3.4.73
Tune CFLAGS Options
Update defconfigs