ext4: remove unnecessary comparisons to bool

Fix the following coccicheck warning:

fs/ext4/extents_status.c:1057:5-28: WARNING: Comparison to bool
fs/ext4/inode.c:2314:18-24: WARNING: Comparison to bool
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/20200420042918.19459-1-yanaijie@huawei.comSigned-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/extents_status.c

@@ -1054,7 +1054,7 @@ static void count_rsvd(struct inode *inode, ext4_lblk_t lblk, long len,
 	end = (end > ext4_es_end(es)) ? ext4_es_end(es) : end;
 
 	/* record the first block of the first delonly extent seen */
-	if (rc->first_do_lblk_found == false) {
+	if (!rc->first_do_lblk_found) {
 		rc->first_do_lblk = i;
 		rc->first_do_lblk_found = true;
 	}

fs/ext4/inode.c

@@ -2307,7 +2307,7 @@ static int mpage_map_and_submit_buffers(struct mpage_da_data *mpd)
 			 * mapping, or maybe the page was submitted for IO.
 			 * So we return to call further extent mapping.
 			 */
-			if (err < 0 || map_bh == true)
+			if (err < 0 || map_bh)
 				goto out;
 			/* Page fully mapped - let IO run! */
 			err = mpage_submit_page(mpd, page);