msm: mdss: hdmi: enable additional clocks for register access

MMMS mnoc_ahb clock needs to be enabled prior to enabling the
mdss_ahb clock on msmcobalt as there is a core fsm dependency
between these clocks.

CRs-Fixed: 1022772
Change-Id: I24f3b01ae40d1242e64bfc87177142b0d64ac123
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>