ARM: dts: msm: Add the clock DT entry for GCC clocks on SDM845 v2.1

Add the device tree entry for the peripheral clocks node on
SDM845 v2.1.

Change-Id: I92a3abe2071bc3d0d152c3e82c251de3f0fb4bc5
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>