ARM: dts: msm: Change display rsc to use AMC votes for sm8150

Since display RSCs now have their own dedicated AMC TSC,
they no longer need to repurpose a single TSC for both
wake and AMC.

Change-Id: I6aa8c32b167d58214f4965f594857d3fbc911dd7
Signed-off-by: David Dai <daidavid1@codeaurora.org>