Linux perf expects hex literals without a leading 0x, while some
implementations of printf might prepend one when using the %p format
for pointers, leading to wrongly formatted JIT symbols maps.

Instead, use V8PRIxPTR format string and cast pointer to uintpr_t,
since we have control over the exact output format of integers.

LOG=N

Review URL: https://codereview.chromium.org/1885033005

Cr-Commit-Position: refs/heads/master@{#35571}