clk: msm: clock-local2: Remove checks for display RCG re-configuration

Allow re-configuring the DSI, DP and HDMI RCGs even if their
current configuration matches that of the requested frequency.
This is to work around the MM RCGs being latched to run off of
XO by default after an MM GDSC power collapse.

Change-Id: Idf5f1f25df6d6a8ef29eb8c15086deba1017584e
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>