ARM: dts: msm: Add hw trigger support for ipe/bps on SM8150

This change adds hardware trigger support for ipe0/1 and
bps on SM8150 target as it is required for bps and ipe to
set regulator mode.

Change-Id: If6a65c7bc889872873d1c0431c573f5698d11ed3
Signed-off-by: Venkat Chinta <vchinta@codeaurora.org>