Move environment files from common/ to env/

About a quarter of the files in common/ relate to the environment. It
seems better to put these into their own subdirectory and remove the
prefix.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/M5272C3.h b/include/configs/M5272C3.h
index e6bd7f3..f5693d8 100644
--- a/include/configs/M5272C3.h
+++ b/include/configs/M5272C3.h
@@ -39,8 +39,8 @@
 #endif
 
 #define LDS_BOARD_TEXT \
-        . = DEFINED(env_offset) ? env_offset : .; \
-        common/env_embedded.o (.text);
+	. = DEFINED(env_offset) ? env_offset : .; \
+	env/embedded.o(.text);
 
 /*
  * BOOTP options