common: Move functions for loading from fat/ext2 to fs.h

These are filesystem functions and belong in the filesystem header file.
Move them.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/common.h b/include/common.h
index 7e2de23..34ef346 100644
--- a/include/common.h
+++ b/include/common.h
@@ -80,12 +80,6 @@
 extern ulong save_addr;		/* Default Save Address */
 extern ulong save_size;		/* Default Save Size */
 
-/* common/cmd_fat.c */
-int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
-
-/* common/cmd_ext2.c */
-int do_ext2load(cmd_tbl_t *, int, int, char * const []);
-
 /* common/exports.c */
 void	jumptable_init(void);
 
diff --git a/include/fs.h b/include/fs.h
index 742a535..37e35c2 100644
--- a/include/fs.h
+++ b/include/fs.h
@@ -14,6 +14,28 @@
 #define FS_TYPE_UBIFS	4
 #define FS_TYPE_BTRFS	5
 
+/**
+ * do_fat_fsload - Run the fatload command
+ *
+ * @cmdtp: Command information for fatload
+ * @flag: Command flags (CMD_FLAG_...)
+ * @argc: Number of arguments
+ * @argv: List of arguments
+ * @return result (see enum command_ret_t)
+ */
+int do_fat_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]);
+
+/**
+ * do_ext2load - Run the ext2load command
+ *
+ * @cmdtp: Command information for ext2load
+ * @flag: Command flags (CMD_FLAG_...)
+ * @argc: Number of arguments
+ * @argv: List of arguments
+ * @return result (see enum command_ret_t)
+ */
+int do_ext2load(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]);
+
 /*
  * Tell the fs layer which block device an partition to use for future
  * commands. This also internally identifies the filesystem that is present