USB: phy: msm: Set usb bam device after block reset

Currently usb bam device is set at the end of probe function.
This results in usb bam driver probe running before block reset.
Due to this, if usb bam is enabled during boot, bam enable bit
in BAM CTRL will gets cleared when block reset is performed and
results in BAM2BAM path not working for first time. Hence fix this
by setting usb bam device after block reset is done.

Change-Id: I258802eb509f5b761d3a73f7efb2f6142d7334ee
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>