ARM: dts: msm: Update the dispcc and camcc nodes on SDMMAGPIE

Update the DISPCC and CAMCC clock controller device nodes to
register to actual DISPCC and CAMCC drivers. Also update the
DISPCC and CAMCC GDSCs by replacing the dummy nodes with
actual GDSC regulator driver.

Change-Id: Ia5af82bd88d87d914249ee596c90b79d2767a798
Signed-off-by: Amit Nischal <anischal@codeaurora.org>