move CLI prototypes to cli.h and add comments

Move the CLI prototypes from common.h to cli.h as part of an effort to
reduce the size of common.h.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/cli_hush.c b/common/cli_hush.c
index 012004a..91e4956 100644
--- a/common/cli_hush.c
+++ b/common/cli_hush.c
@@ -79,6 +79,7 @@
 #include <malloc.h>         /* malloc, free, realloc*/
 #include <linux/ctype.h>    /* isalpha, isdigit */
 #include <common.h>        /* readline */
+#include <cli.h>
 #include <cli_hush.h>
 #include <command.h>        /* find_cmd */
 #ifndef CONFIG_SYS_PROMPT_HUSH_PS2
diff --git a/common/cmd_bedbug.c b/common/cmd_bedbug.c
index 77b6e3e..f1a70ef 100644
--- a/common/cmd_bedbug.c
+++ b/common/cmd_bedbug.c
@@ -3,6 +3,7 @@
  */
 
 #include <common.h>
+#include <cli.h>
 #include <command.h>
 #include <linux/ctype.h>
 #include <net.h>
diff --git a/common/cmd_dcr.c b/common/cmd_dcr.c
index 896f79f..c5bcb8b 100644
--- a/common/cmd_dcr.c
+++ b/common/cmd_dcr.c
@@ -10,6 +10,7 @@
  */
 
 #include <common.h>
+#include <cli.h>
 #include <config.h>
 #include <command.h>
 
diff --git a/common/cmd_i2c.c b/common/cmd_i2c.c
index ebce7d4..8ccde68 100644
--- a/common/cmd_i2c.c
+++ b/common/cmd_i2c.c
@@ -66,6 +66,7 @@
  */
 
 #include <common.h>
+#include <cli.h>
 #include <command.h>
 #include <edid.h>
 #include <environment.h>
diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index 5b03c2d..4b8738b 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -12,6 +12,7 @@
  */
 
 #include <common.h>
+#include <cli.h>
 #include <command.h>
 #ifdef CONFIG_HAS_DATAFLASH
 #include <dataflash.h>
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index f4e306c..a1e98c6 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -25,6 +25,7 @@
  */
 
 #include <common.h>
+#include <cli.h>
 #include <command.h>
 #include <environment.h>
 #include <search.h>
diff --git a/common/cmd_pci.c b/common/cmd_pci.c
index d3e7c08..ddda207 100644
--- a/common/cmd_pci.c
+++ b/common/cmd_pci.c
@@ -14,6 +14,7 @@
  */
 
 #include <common.h>
+#include <cli.h>
 #include <command.h>
 #include <asm/processor.h>
 #include <asm/io.h>
diff --git a/common/main.c b/common/main.c
index a80fb7c..6d1c3a9 100644
--- a/common/main.c
+++ b/common/main.c
@@ -12,6 +12,7 @@
 /* #define	DEBUG	*/
 
 #include <common.h>
+#include <cli.h>
 #include <command.h>
 #include <fdtdec.h>
 #include <cli_hush.h>
diff --git a/common/menu.c b/common/menu.c
index ba393ad..88d4697 100644
--- a/common/menu.c
+++ b/common/menu.c
@@ -5,6 +5,7 @@
  */
 
 #include <common.h>
+#include <cli.h>
 #include <malloc.h>
 #include <errno.h>
 #include <linux/list.h>