clk: msm: clock-gcc-titanium: add voter clocks for MDSS rotator

MDSS rotator requires separate resource initialization,
so add the voter clocks to support the same for msmtitanium.

Change-Id: Icbdc423a581f9bcd72e3fc16b80320411b4fd5c6
Signed-off-by: Sandeep Panda <spanda@codeaurora.org>