perf parse-events: Include errno.h before kernel headers

Building perf against uClibc fails in config_term_common():

  util/parse-events.c:954:30: error: 'ERANGE' undeclared

The kernel headers included before errno.h pull in asm/errno.h. uClibc's
bits/errno.h undefines EDOM, EILSEQ and ERANGE before including
linux/errno.h, but the kernel header include guards prevent these macros
from being defined again.

Include errno.h before the kernel headers so ERANGE remains defined.

Fixes: 6b9c0261b3 ("perf record: Add ratio-to-prev term")
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Faisal Bukhari <faisalbukhari523@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qinxin Xia <xiaqinxin@huawei.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/parse-events.c

@@ -1,10 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <errno.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/err.h>
 #include <linux/list_sort.h>
 #include <linux/zalloc.h>
 #include <dirent.h>
-#include <errno.h>
 #include <sys/ioctl.h>
 #include <sys/param.h>
 #include "cpumap.h"