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/nand.c b/cmd/nand.c
index c42ab24..92d039a 100644
--- a/cmd/nand.c
+++ b/cmd/nand.c
@@ -189,7 +189,7 @@
 #ifdef CONFIG_ENV_OFFSET_OOB
 unsigned long nand_env_oob_offset;
 
-int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[])
+int do_nand_env_oob(struct cmd_tbl *cmdtp, int argc, char *const argv[])
 {
 	int ret;
 	uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)];
@@ -376,7 +376,8 @@
 	}
 }
 
-static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_nand(struct cmd_tbl *cmdtp, int flag, int argc,
+		   char *const argv[])
 {
 	int i, ret = 0;
 	ulong addr;
@@ -845,7 +846,7 @@
 	"NAND sub-system", nand_help_text
 );
 
-static int nand_load_image(cmd_tbl_t *cmdtp, struct mtd_info *mtd,
+static int nand_load_image(struct cmd_tbl *cmdtp, struct mtd_info *mtd,
 			   ulong offset, ulong addr, char *cmd)
 {
 	int r;
@@ -933,8 +934,8 @@
 	return bootm_maybe_autostart(cmdtp, cmd);
 }
 
-static int do_nandboot(cmd_tbl_t *cmdtp, int flag, int argc,
-		       char * const argv[])
+static int do_nandboot(struct cmd_tbl *cmdtp, int flag, int argc,
+		       char *const argv[])
 {
 	char *boot_device = NULL;
 	int idx;