msm: kgsl: Update HW CGC settings

For best performance, it is required that some of
the hardware CGC settings are changed to new values.
Update them in the register structure.

Change-Id: I97792c383ea542a13eda53f9ede9d0e948e1efba
Signed-off-by: Kyle Piefer <kpiefer@codeaurora.org>