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/irq.c b/cmd/irq.c
index 52d06b3..1d3e28c 100644
--- a/cmd/irq.c
+++ b/cmd/irq.c
@@ -8,8 +8,8 @@
 #include <command.h>
 #include <irq_func.h>
 
-static int do_interrupts(cmd_tbl_t *cmdtp, int flag, int argc,
-			 char * const argv[])
+static int do_interrupts(struct cmd_tbl *cmdtp, int flag, int argc,
+			 char *const argv[])
 {
 
 	if (argc != 2)
@@ -31,7 +31,7 @@
 );
 
 /* Implemented in $(CPU)/interrupts.c */
-int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_irqinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);
 
 U_BOOT_CMD(
 	irqinfo,    1,    1,     do_irqinfo,