disp: msm: update clk and cmd state switch sequence

Disable double buffer vsync configuration while
enabling clk and cmd state switch sequence. Leaving
this configuration in enable state may cause different
issues for different state switch. Clock state switch
may see a vsync delay for solver disable. Command
state switch may not update the vsync source.

Change-Id: I30d1f02a9b1d0972acb1e0318b7f8d9f3a262a60
Signed-off-by: Mahadevan <mahap@codeaurora.org>