msm: usb_bam: replace %p with %pK

Format specifier %p can leak kernel addresses while not valuing the
kptr_restrict system settings. When kptr_restrict is set to (1), kernel
pointers printed using the %pK format specifier will be replaced with
0's.

Debugging Note : &pK prints only Zeros as address. If you need actual
address information, write 0 to kptr_restrict.
echo 0 > /proc/sys/kernel/kptr_restrict

Change-Id: If3e3a7d5c737b8b7e2c2f78e2814747db4a770cd
Signed-off-by: Liangliang Lu <luliang@codeaurora.org>