msm: kgsl: Set UBWC correctly for DDR 4 and 5

DDR 4 and 5 are both supported on A650. Ensure that the correct
UBWC mode is set based on dtsi and DDR type.

Change-Id: I025eba01bb84fc93d5756b42cf58823a831e4b2f
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>
Signed-off-by: Raghu Ananya Arabolu <rarabolu@codeaurora.org>