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/board/renesas/sh7757lcr/sh7757lcr.c b/board/renesas/sh7757lcr/sh7757lcr.c
index eef5d36..5e76b9e 100644
--- a/board/renesas/sh7757lcr/sh7757lcr.c
+++ b/board/renesas/sh7757lcr/sh7757lcr.c
@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <command.h>
 #include <env.h>
 #include <flash.h>
 #include <init.h>
@@ -344,7 +345,7 @@
 	return 0;
 }
 
-int do_sh_g200(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_sh_g200(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	struct gctrl_regs *gctrl = GCTRL_BASE;
 	unsigned long graofst;
@@ -363,7 +364,7 @@
 );
 
 #ifdef CONFIG_DEPRECATED
-int do_write_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_write_mac(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	int i, ret;
 	char mac_string[256];