env_nvram: Move conditional compilation to Makefile

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

common/Makefile

@@ -54,7 +54,7 @@ COBJS-$(CONFIG_ENV_IS_IN_DATAFLASH) += env_dataflash.o
 COBJS-$(CONFIG_ENV_IS_IN_EEPROM) += env_eeprom.o
 COBJS-y += env_flash.o
 COBJS-$(CONFIG_ENV_IS_IN_NAND) += env_nand.o
-COBJS-y += env_nvram.o
+COBJS-$(CONFIG_ENV_IS_IN_NVRAM) += env_nvram.o
 COBJS-y += env_onenand.o
 COBJS-y += env_sf.o
 COBJS-y += env_nowhere.o

common/env_nvram.c

@@ -41,15 +41,12 @@
  */
 
 #include <common.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CONFIG_ENV_IS_IN_NVRAM /* Environment is in NVRAM */
-
 #include <command.h>
 #include <environment.h>
 #include <linux/stddef.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 #ifdef CFG_NVRAM_ACCESS_ROUTINE
 extern void *nvram_read(void *dest, const long src, size_t count);
 extern void nvram_write(long dest, const void *src, size_t count);
@@ -156,5 +153,3 @@ int env_init (void)
 #endif
 	return (0);
 }
-
-#endif /* CONFIG_ENV_IS_IN_NVRAM */