ARM: dts: msm: Add the hw-trigger flag to the IPE and BPS GDSCs on SDM845

Add the qcom,support-hw-trigger flag to the ipe_0_gdsc,
ipe_1_gdsc and bps_gdsc GDSC nodes in order to allow
enabling/disabling HW control for them.

Change-Id: I0cfe5f1e2d96edfcbb73ba11df29577b499c4413
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>