msm: mdss: add support for dynamic OT for mdss on 8952

As per QoS recommendation for mdss on 8952, Rotator/WB OT
should be configured for both read/write paths. Add
support for configuring dynamic OT in msm8952, for
Rotator and WB paths.

Change-Id: I543a99cb931f2a58f5f98937c32728f290614316
Signed-off-by: Krishna Chaitanya Devarakonda <kdevarak@codeaurora.org>