ARM: dts: msm: add PMIC clock divider devices for SDM855

Add clock divider peripheral devices for PM855, PM855B, and
PM855L.  These devices allow consumers to manager the XO clock
dividers.

Change-Id: Id2623aa566eaf0535b22d511c38d4e77eee29e11
Signed-off-by: David Collins <collinsd@codeaurora.org>