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/arch/nds32/cpu/n1213/ae3xx/cpu.c b/arch/nds32/cpu/n1213/ae3xx/cpu.c
index 0660fff..c3efa31 100644
--- a/arch/nds32/cpu/n1213/ae3xx/cpu.c
+++ b/arch/nds32/cpu/n1213/ae3xx/cpu.c
@@ -39,7 +39,7 @@
 	return 0;
 }
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_reset(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	disable_interrupts();
 	panic("AE3XX wdt not support yet.\n");
diff --git a/arch/nds32/cpu/n1213/ag101/cpu.c b/arch/nds32/cpu/n1213/ag101/cpu.c
index 3ae87a2..9d99c83 100644
--- a/arch/nds32/cpu/n1213/ag101/cpu.c
+++ b/arch/nds32/cpu/n1213/ag101/cpu.c
@@ -39,7 +39,7 @@
 	return 0;
 }
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int do_reset(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	disable_interrupts();