ARM: Use -mcpu=cortex-a15 when targeting MSM Krait CPUs

Enable compiler optimizations specific to the Cortex-A15
processor when targeting MSM Krait CPUs. This is necessary
take advantage of the UDIV/SDIV instructions supported by
these processors. To accomplish this, we need to remove the
-march=armv7-a ISA restriction from the compiler options
because 'cortex-a15' is a superset of 'armv7-a'.

Change-Id: I6215aecc11fb4f77c971de7b84f68649ef234357
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Fix up optimizations WIP

  * Make sure optimizations flags are properly used
  * Switch fpu flag to neong-vfpv4 as krait supports both
  * Add and remove some flags

Change-Id: Ifd35292a7324e183ec2000266f20a7ae477c87b7
Signed-off-by: Josue Rivera <prbassplayer@gmail.com>
Bump version again

Change-Id: I090b2a23388839ca84b8fef37d74fa981d7e739c