tools headers: Update the uapi/linux/perf_event.h copy with the kernel sources

To pick up the changes in:

  c53e14f1 perf: Extend per event callchain limit to branch stack

Addressing this perf tools build warning:

  Warning: Kernel ABI header differences:
    diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h

Please see tools/include/uapi/README for further details.

Acked-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Link: https://lore.kernel.org/r/20250410001125.391820-4-namhyung@kernel.org


Signed-off-by: Namhyung Kim <namhyung@kernel.org>