msm: kgsl: Specify context aware target power level for each speed bin

Some platforms support multiple GPU clock plans based on the speed bin
in the efuse. Specify context aware DCVS target power level for each
speed bin to make sure context aware jump happens at correct level for
each GPU clock plan.

Change-Id: I4837423815c94d5d0966d4f7ea7a4427d65d0d50
Signed-off-by: Deepak Kumar <dkumar@codeaurora.org>