env: Rename environment.h to env_internal.h

This file contains lots of internal details about the environment. Most
code can include env.h instead, calling the functions there as needed.

Rename this file and add a comment at the top to indicate its internal
nature.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
[trini: Fixup apalis-tk1.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/common/board_f.c b/common/board_f.c
index 18937bf..31181a9 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -15,7 +15,7 @@
 #include <cpu.h>
 #include <dm.h>
 #include <env.h>
-#include <environment.h>
+#include <env_internal.h>
 #include <fdtdec.h>
 #include <fs.h>
 #include <i2c.h>
diff --git a/common/board_r.c b/common/board_r.c
index f4193cd..1dabf5a 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -19,7 +19,7 @@
 #include <console.h>
 #include <dm.h>
 #include <env.h>
-#include <environment.h>
+#include <env_internal.h>
 #include <fdtdec.h>
 #include <ide.h>
 #include <initcall.h>
diff --git a/common/console.c b/common/console.c
index 0f7e091..89b1e95 100644
--- a/common/console.c
+++ b/common/console.c
@@ -17,7 +17,7 @@
 #include <serial.h>
 #include <stdio_dev.h>
 #include <exports.h>
-#include <environment.h>
+#include <env_internal.h>
 #include <watchdog.h>
 
 DECLARE_GLOBAL_DATA_PTR;