platform: msm8952: Update iomap header with DSI1 offsets for msm8956

MSM8956 supports two DSI controller/PHY h/w blocks and two DSI PLLs.
Add the register offsets related to DSI1 controller, PHY and PLL in
the 8952 iomap header file.

Change-Id: I83a9eb59a8c6a5b892efb47648399ec815fef69e
1 file changed