defconfig: msm: Enable MMCC/GPUCC and OSM clocks for sdm660

Multimedia and Graphics clock controller is required to be enabled for perf
defconfig. Also enable OSM clock controller for CPU clocks.

Change-Id: I6d9f7b6a40e5899af4104949c59a9b9fee87587c
Signed-off-by: Taniya Das <tdas@codeaurora.org>