command: Remove the cmd_tbl_t typedef

We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.

Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.

This requires quite a few header-file additions.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/fs/fs.c b/fs/fs.c
index 061917a..5591c65 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -3,6 +3,7 @@
  * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
  */
 
+#include <command.h>
 #include <config.h>
 #include <errno.h>
 #include <common.h>
@@ -644,8 +645,8 @@
 	return ret;
 }
 
-int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
-		int fstype)
+int do_size(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
+	    int fstype)
 {
 	loff_t size;
 
@@ -663,8 +664,8 @@
 	return 0;
 }
 
-int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
-		int fstype)
+int do_load(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
+	    int fstype)
 {
 	unsigned long addr;
 	const char *addr_str;
@@ -737,8 +738,8 @@
 	return 0;
 }
 
-int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
-	int fstype)
+int do_ls(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
+	  int fstype)
 {
 	if (argc < 2)
 		return CMD_RET_USAGE;
@@ -763,8 +764,8 @@
 	return fs_exists(file);
 }
 
-int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
-		int fstype)
+int do_save(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
+	    int fstype)
 {
 	unsigned long addr;
 	const char *filename;
@@ -805,8 +806,8 @@
 	return 0;
 }
 
-int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
-		int fstype)
+int do_fs_uuid(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
+	       int fstype)
 {
 	int ret;
 	char uuid[37];
@@ -830,7 +831,7 @@
 	return CMD_RET_SUCCESS;
 }
 
-int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_fs_type(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	struct fstype_info *info;
 
@@ -852,7 +853,7 @@
 	return CMD_RET_SUCCESS;
 }
 
-int do_rm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
+int do_rm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 	  int fstype)
 {
 	if (argc != 4)
@@ -867,7 +868,7 @@
 	return 0;
 }
 
-int do_mkdir(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
+int do_mkdir(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 	     int fstype)
 {
 	int ret;
@@ -887,7 +888,7 @@
 	return 0;
 }
 
-int do_ln(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
+int do_ln(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[],
 	  int fstype)
 {
 	if (argc != 5)