perf/headers: Fix stale comment for struct perf_addr_filter

The @inode field has been removed after:

  9511bce9 ("perf/core: Fix bad use of igrab()")

Update the description.
Signed-off-by: NShaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: https://lkml.kernel.org/r/1554274464-5739-1-git-send-email-zhangshaokun@hisilicon.comSigned-off-by: NIngo Molnar <mingo@kernel.org>

include/linux/perf_event.h

@@ -464,7 +464,7 @@ enum perf_addr_filter_action_t {
 /**
  * struct perf_addr_filter - address range filter definition
  * @entry:	event's filter list linkage
- * @inode:	object file's inode for file-based filters
+ * @path:	object file's path for file-based filters
  * @offset:	filter range offset
  * @size:	filter range size (size==0 means single address trigger)
  * @action:	filter/start/stop