Redundant environment: move flag definitions to header file

Instead of defining the flags sevaral times in different source files
(which is error prone), move them to a central place in a header file.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/common/env_eeprom.c b/common/env_eeprom.c
index 4f7f0db..8fe59f8 100644
--- a/common/env_eeprom.c
+++ b/common/env_eeprom.c
@@ -32,11 +32,6 @@
 #include <i2c.h>
 #endif
 
-#ifdef CONFIG_ENV_OFFSET_REDUND
-#define ACTIVE_FLAG   1
-#define OBSOLETE_FLAG 0
-#endif
-
 DECLARE_GLOBAL_DATA_PTR;
 
 env_t *env_ptr = NULL;
diff --git a/common/env_flash.c b/common/env_flash.c
index ef0582d..925c5a0 100644
--- a/common/env_flash.c
+++ b/common/env_flash.c
@@ -71,9 +71,6 @@
 /* CONFIG_ENV_ADDR is supposed to be on sector boundary */
 static ulong end_addr = CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1;
 static ulong end_addr_new = CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1;
-
-#define ACTIVE_FLAG   1
-#define OBSOLETE_FLAG 0
 #endif /* CONFIG_ENV_ADDR_REDUND */
 
 extern uchar default_environment[];
diff --git a/include/environment.h b/include/environment.h
index b9924fd..203f731 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -122,6 +122,9 @@
 
 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
 # define ENV_HEADER_SIZE	(sizeof(uint32_t) + 1)
+
+# define ACTIVE_FLAG   1
+# define OBSOLETE_FLAG 0
 #else
 # define ENV_HEADER_SIZE	(sizeof(uint32_t))
 #endif