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/drivers/net/e1000.c b/drivers/net/e1000.c
index 7e98449..82b1db3 100644
--- a/drivers/net/e1000.c
+++ b/drivers/net/e1000.c
@@ -30,6 +30,7 @@
  */
 
 #include <common.h>
+#include <command.h>
 #include <cpu_func.h>
 #include <dm.h>
 #include <errno.h>
@@ -5761,8 +5762,8 @@
 #endif /* !CONFIG_DM_ETH */
 
 #ifdef CONFIG_CMD_E1000
-static int do_e1000(cmd_tbl_t *cmdtp, int flag,
-		int argc, char * const argv[])
+static int do_e1000(struct cmd_tbl *cmdtp, int flag, int argc,
+		    char *const argv[])
 {
 	unsigned char *mac = NULL;
 #ifdef CONFIG_DM_ETH