usb: bam: Fix pointer-to-int cast compilation errors

Remove instances of pointer-to-int casting in some printk
statements. These were intended to allow printing with
the %x specifier, but on 64-bit targets, the size of a
pointer is not the same as an integer, and results in
compilation errors. Use the %p format specifier instead.

Change-Id: I268fe7cc718eb0e224e9986ab5494faf95161d7e
Signed-off-by: Jack Pham <jackp@codeaurora.org>