ARM: dts: msm: Add dummy clock nodes for clock controllers for LITO

Dummy clock nodes are required for clocks client to request, so add support
for the same. Also add the dummy GDSCs required by clients.

Change-Id: Id2447193ef99a2a782256491f08974eea00b5ae9
Signed-off-by: Taniya Das <tdas@codeaurora.org>