uio: msm_sharedmem: Use proper format to print phys_addr_t

Use proper printk format specifier to print phys_addr_t
type variable.

Change-Id: I7c55e44e813d8d41e1ead03280044c8542a24922
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>