ARM: dts: msm: Add bus bandwidth vectors for USB on sdxpoorwills

This change adds different bus bandwidth vectors with USB port to
receive better latency and throughput while accessing bus. It also
adds IPA slave config to access IPA related doorbell register for
hardware accelerated usecase with primary USB port. It also adds
bus voting to keep PCNOC bus clock running at 10Mhz for case where
APSS is trying to access USB3 registers.

Change-Id: I7fedc4a419324126a849509176b7b5bdd634924a
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>