msm: mdss: dsi: Configure pll to work only in full rate mode

Update the DSI phy v3 initialization sequence as per the
recommended values. The key changes include changing the operating
mode from hybrid to full-rate only.

Change-Id: I999c6f2f76b8991172cd2f5c4b6c99e0ed5d186b
Signed-off-by: Siddhartha Agrawal <agrawals@codeaurora.org>