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/arm/mach-keystone/cmd_mon.c b/arch/arm/mach-keystone/cmd_mon.c
index 8142039..049d573 100644
--- a/arch/arm/mach-keystone/cmd_mon.c
+++ b/arch/arm/mach-keystone/cmd_mon.c
@@ -12,8 +12,8 @@
 #include <mach/mon.h>
 asm(".arch_extension sec\n\t");
 
-static int do_mon_install(cmd_tbl_t *cmdtp, int flag, int argc,
-			  char * const argv[])
+static int do_mon_install(struct cmd_tbl *cmdtp, int flag, int argc,
+			  char *const argv[])
 {
 	u32 addr, dpsc_base = 0x1E80000, freq, load_addr, size;
 	int     rcode = 0;
@@ -65,8 +65,8 @@
 	}
 }
 
-int do_mon_power(cmd_tbl_t *cmdtp, int flag, int argc,
-			char * const argv[])
+int do_mon_power(struct cmd_tbl *cmdtp, int flag, int argc,
+		 char *const argv[])
 {
 	int     rcode = 0, core_id, on;
 	void (*fn)(void);