Fix mac build.

"u64" is either an unsigned long (in __LP64__ builds) or
an unsigned long long (otherwise). This CL adds a format string
"PRIext4u64" to be used in place of "PRIu64" when referring to a
variable of type "u64".

related-to-build
Test: make

Change-Id: I6ef911dda3ebdcc0f895c54325b8a82b57a62ee6
4 files changed