perf bench breakpoint: Fix build on 32-bit arches

Cast pointers to unsigned long instead of to uint64_t to avoid this
problem on 32-bit arches:

31 6.89 debian:experimental-x-mips : FAIL gcc version 11.2.0 (Debian 11.2.0-18)
bench/breakpoint.c: In function 'breakpoint_setup':
bench/breakpoint.c:56:24: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
56 | attr.bp_addr = (uint64_t)addr;
| ^
cc1: all warnings being treated as errors
make[3]: *** [/git/perf-5.18.0-rc7/tools/build/Makefile.build:139: bench] Error 2

Fixes: 68a6772f11dbb1ed ("perf bench: Add breakpoint benchmarks")
Cc: Adrian Hunter <[e-mail]>
Cc: Alexander Shishkin <[e-mail]>
Cc: Dmitriy Vyukov <[e-mail]>
Cc: Ian Rogers <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Marco Elver <[e-mail]>
Cc: Mark Rutland <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Link: http://lore.kernel.org/lkml/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/bench/breakpoint.c

···
 	attr.inherit = 1;
 	attr.exclude_kernel = 1;
 	attr.exclude_hv = 1;
-	attr.bp_addr = (uint64_t)addr;
+	attr.bp_addr = (unsigned long)addr;
 	attr.bp_type = HW_BREAKPOINT_RW;
 	attr.bp_len = HW_BREAKPOINT_LEN_1;
 	return syscall(SYS_perf_event_open, &attr, 0, -1, -1, 0);