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/x86/fsp.c b/cmd/x86/fsp.c
index 6e485fb..8017eda 100644
--- a/cmd/x86/fsp.c
+++ b/cmd/x86/fsp.c
@@ -9,7 +9,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-static int do_hdr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_hdr(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	struct fsp_header *hdr;
 	u32 img_addr;
@@ -80,13 +80,13 @@
 	return 0;
 }
 
-static cmd_tbl_t fsp_commands[] = {
+static struct cmd_tbl fsp_commands[] = {
 	U_BOOT_CMD_MKENT(hdr, 0, 1, do_hdr, "", ""),
 };
 
-static int do_fsp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_fsp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
-	cmd_tbl_t *fsp_cmd;
+	struct cmd_tbl *fsp_cmd;
 	int ret;
 
 	if (argc < 2)