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-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c
index 557305c..ac2b891 100644
--- a/arch/arm/mach-socfpga/misc.c
+++ b/arch/arm/mach-socfpga/misc.c
@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <command.h>
 #include <cpu_func.h>
 #include <hang.h>
 #include <asm/cache.h>
@@ -178,7 +179,8 @@
 }
 
 #ifndef CONFIG_SPL_BUILD
-static int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_bridge(struct cmd_tbl *cmdtp, int flag, int argc,
+		     char *const argv[])
 {
 	unsigned int mask = ~0;