ARM:proc:Add Krait proc info

Add processor infor for the Qualcomm, Inc. Krait family of processors,
to use the generic ARMv7 initialisation procedure but explicitly enable
the IDV hardware capabilty flag.

Change-Id : I080f60189fada2e4f87c796b8ef522cdc070759
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>