TI:omap5: Move CONFIG_ENV_SIZE to board config files

The size of the environment depends on the backing store, move this to
the board config files.

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/include/configs/omap5_uevm.h b/include/configs/omap5_uevm.h
index 783b7c3..7e2ecd5 100644
--- a/include/configs/omap5_uevm.h
+++ b/include/configs/omap5_uevm.h
@@ -26,6 +26,7 @@
 /* MMC ENV related defines */
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV		1	/* SLOT2: eMMC(1) */
+#define CONFIG_ENV_SIZE			(128 << 10)
 #define CONFIG_ENV_OFFSET		0xE0000
 #define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
 #define CONFIG_SYS_REDUNDAND_ENVIRONMENT