staging: exfat: make staging/exfat and fs/exfat mutually exclusive

Make staging/exfat and fs/exfat mutually exclusive to select the one
between two same filesystem.

Suggested-by: Amir Goldstein <[email protected]>
Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Sungjong Seo <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Reviewed-by: Pali Rohár <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>

Author: namjaejeon

drivers/staging/exfat/Kconfig

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 config STAGING_EXFAT_FS
 	tristate "exFAT fs support"
-	depends on BLOCK
+	depends on BLOCK && !EXFAT_FS
 	select NLS
 	help
 	  This adds support for the exFAT file system.