Convert CONFIG_SYS_LOAD_ADDR to Kconfig

Now that we have consistent usage, migrate this symbol to Kconfig.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Rick Chen <rick@andestech.com>
diff --git a/configs/armadillo-800eva_defconfig b/configs/armadillo-800eva_defconfig
index e06ef7d..903fd83 100644
--- a/configs/armadillo-800eva_defconfig
+++ b/configs/armadillo-800eva_defconfig
@@ -10,6 +10,7 @@
 CONFIG_ARCH_RMOBILE_BOARD_STRING="Armadillo-800EVA Board"
 CONFIG_R8A7740=y
 CONFIG_TARGET_ARMADILLO_800EVA=y
+CONFIG_SYS_LOAD_ADDR=0x44000000
 CONFIG_BOOTDELAY=3
 # CONFIG_CMDLINE_EDITING is not set
 # CONFIG_AUTO_COMPLETE is not set