mmc_cmds: Display BARRIER_CTRL Status when printing EXT_CSD

The status of BARRIER_CTRL can be read from this byte: EXT_CSD[31](R/W)
Signed-off-by: Shankar Athanikar <shankar.ma@samsung.com>
Reviewed-by: <mohanraj.v@samsung.com>
Link: https://lore.kernel.org/r/20211224111917.707440-1-shankar.ma@samsung.com
[Ulf: Cleaned up whitespace and corrected sob-tag]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

mmc_cmds.c

@@ -1831,7 +1831,9 @@ int do_read_extcsd(int nargs, char **argv)
 		printf("Control to turn the Cache ON/OFF"
 			" [CACHE_CTRL]: 0x%02x\n", ext_csd[33]);
 		/* flush_cache ext_csd[32] not readable */
-		/*Reserved [31:0] */
+		printf("Control to turn the Cache Barrier ON/OFF"
+			" [BARRIER_CTRL]: 0x%02x\n", ext_csd[31]);
+		/*Reserved [30:0] */
 	}
 
 	if (ext_csd_rev >= 7) {