env: Add CONFIG_SYS_RELOC_GD_ENV_ADDR symbol

Today in initr_reloc_global_data() we use some non-obvious tests to
determine if we need to relocate the env_addr within gd or not.  In
order to facilitate migration of other symbols to Kconfig we need to
introduce a new symbol for this particular use case.

Cc: Wolfgang Denk <wd@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/tricorder_flash_defconfig b/configs/tricorder_flash_defconfig
index 3a7061e..20783ef 100644
--- a/configs/tricorder_flash_defconfig
+++ b/configs/tricorder_flash_defconfig
@@ -24,6 +24,7 @@
 CONFIG_MTDIDS_DEFAULT="nand0=omap2-nand.0"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=omap2-nand.0:128k(SPL),1m(u-boot),384k(u-boot-env1),1152k(mtdoops),384k(u-boot-env2),5m(kernel),2m(fdt),-(ubi)"
 CONFIG_CMD_UBI=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 # CONFIG_NET is not set
 CONFIG_LED_STATUS=y
 CONFIG_LED_STATUS0=y