fs_fill: Increase timeout to 5 min

1 min timeout sometimes is not enough. Although it could be fixed
LTP_RUNTIME_MUL=2, let's prolong the default timeout.

Link: https://lore.kernel.org/ltp/[email protected]/
Fixes: 848dd6f ("fs_fill: Increase test loop device size to 1GB")
Reviewed-by: Cyril Hrubis <[email protected]>
Signed-off-by: Petr Vorel <[email protected]>

testcases/kernel/fs/fs_fill/fs_fill.c

@@ -121,7 +121,7 @@ static void cleanup(void)
 }
 
 static struct tst_test test = {
-	.max_runtime = 60,
+	.max_runtime = 300,
 	.needs_root = 1,
 	.dev_min_size = 1024,
 	.mount_device = 1,