msm: kgsl: Fix the mmu pagefault tracepoint

Fix the faulting address to be shown as a 64-bit value
instead of 32 bit.

Change-Id: Ib97a7f4b33046bafaf15f97f0f8cdd60e634d564
Signed-off-by: Harshdeep Dhatt <hdhatt@codeaurora.org>