msm: Add support for MSM8930AA

Update the call sites of cpu_is_msm8930() to include checks
for the MSM8930AA() variant. Relevant drivers will be
updated for more driver-specific specific MSM8930AA checks
at a later time.

Change-Id: Iff1af7a5454ec56c40390682ce2b4b6d1d325c91
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>