dt-bindings: clock: Add support for smd_rpm clock ids for SDM429W

Update clock IDs for RPMCC for clients to be able to request
for clocks from these clock controllers.

Change-Id: Icdc1ad89c2ca463af126facd59f8726e5c0e769f
Signed-off-by: Saurabh Sahu <sausah@codeaurora.org>