USB: ehci-msm-hsic: Make driver less verbose

Don't print messages while entering and exiting low power mode.
Use /sys/devices/.../power/runtime_status to query the state of
HSIC device.

CRs-Fixed: 455012
Change-Id: I4e8a56b67dfdb8f685373d2eabe1c9e3ef499eca
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
1 file changed