msm: kgsl: Add RSC and PDC sequence changes for a650

a650 has a different RSC sequencer ucode for slumber and wakeup,
also one of the PDC address offset has changed. Add support
for these changes.

Change-Id: I1ccd39c55380b17edcfed611b925a75771cf4a67
Signed-off-by: Urvashi Agrawal <urvaagra@codeaurora.org>