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/cmd/load.c b/cmd/load.c
index 36db571..85e5540 100644
--- a/cmd/load.c
+++ b/cmd/load.c
@@ -41,8 +41,8 @@
 /* -------------------------------------------------------------------- */
 
 #if defined(CONFIG_CMD_LOADS)
-static int do_load_serial(cmd_tbl_t *cmdtp, int flag, int argc,
-			  char * const argv[])
+static int do_load_serial(struct cmd_tbl *cmdtp, int flag, int argc,
+			  char *const argv[])
 {
 	long offset = 0;
 	ulong addr;
@@ -242,7 +242,8 @@
 
 #if defined(CONFIG_CMD_SAVES)
 
-int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_save_serial(struct cmd_tbl *cmdtp, int flag, int argc,
+		   char *const argv[])
 {
 	ulong offset = 0;
 	ulong size   = 0;
@@ -419,8 +420,8 @@
 static char his_pad_char;   /* pad chars he needs */
 static char his_quote;      /* quote chars he'll use */
 
-static int do_load_serial_bin(cmd_tbl_t *cmdtp, int flag, int argc,
-			      char * const argv[])
+static int do_load_serial_bin(struct cmd_tbl *cmdtp, int flag, int argc,
+			      char *const argv[])
 {
 	ulong offset = 0;
 	ulong addr;