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/P1022DS_36BIT_SPIFLASH_defconfig b/configs/P1022DS_36BIT_SPIFLASH_defconfig
index 2eea528..8b5a675 100644
--- a/configs/P1022DS_36BIT_SPIFLASH_defconfig
+++ b/configs/P1022DS_36BIT_SPIFLASH_defconfig
@@ -42,6 +42,7 @@
 CONFIG_MTDIDS_DEFAULT="nor0=fe8000000.nor"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=fe8000000.nor:48m(ramdisk),14m(diagnostic),2m(dink),6m(kernel),58112k(fs),512k(dtb),768k(u-boot)"
 CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_FSL_ESDHC=y
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_FLASH_CFI_DRIVER=y