disp: msm: dsi: Add support for 5nm C-PHY shadow clock

Add support for 5nm DSI PLL C-PHY shadow clocks, which
will be used during dynamic dsi clock switch.

Change-Id: I55b11f2d0cffd8494d4641e9b2de0b88e7229978
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>