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/pcap.c b/cmd/pcap.c
index 980603f..d0172f3 100644
--- a/cmd/pcap.c
+++ b/cmd/pcap.c
@@ -9,8 +9,8 @@
 #include <net.h>
 #include <net/pcap.h>
 
-static int do_pcap_init(cmd_tbl_t *cmdtp, int flag, int argc,
-			char * const argv[])
+static int do_pcap_init(struct cmd_tbl *cmdtp, int flag, int argc,
+			char *const argv[])
 {
 	phys_addr_t addr;
 	unsigned int size;
@@ -24,26 +24,26 @@
 	return pcap_init(addr, size) ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
 }
 
-static int do_pcap_start(cmd_tbl_t *cmdtp, int flag, int argc,
-			 char * const argv[])
+static int do_pcap_start(struct cmd_tbl *cmdtp, int flag, int argc,
+			 char *const argv[])
 {
 	return pcap_start_stop(true) ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
 }
 
-static int do_pcap_stop(cmd_tbl_t *cmdtp, int flag, int argc,
-			char * const argv[])
+static int do_pcap_stop(struct cmd_tbl *cmdtp, int flag, int argc,
+			char *const argv[])
 {
 	return pcap_start_stop(false) ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
 }
 
-static int do_pcap_status(cmd_tbl_t *cmdtp, int flag, int argc,
-			  char * const argv[])
+static int do_pcap_status(struct cmd_tbl *cmdtp, int flag, int argc,
+			  char *const argv[])
 {
 	return pcap_print_status() ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
 }
 
-static int do_pcap_clear(cmd_tbl_t *cmdtp, int flag, int argc,
-			 char * const argv[])
+static int do_pcap_clear(struct cmd_tbl *cmdtp, int flag, int argc,
+			 char *const argv[])
 {
 	return pcap_clear() ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
 }