Convert CONFIG_SPL_STACK to Kconfig
This converts the following to Kconfig:
CONFIG_SPL_STACK
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/phycore-rk3288_defconfig b/configs/phycore-rk3288_defconfig
index 522dd66..d791e9d 100644
--- a/configs/phycore-rk3288_defconfig
+++ b/configs/phycore-rk3288_defconfig
@@ -25,6 +25,8 @@
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_SPL_PAD_TO=0x7f8000
CONFIG_SPL_NO_BSS_LIMIT=y
+# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
+CONFIG_SPL_STACK=0xff718000
CONFIG_SPL_STACK_R=y
CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x2000
CONFIG_CMD_GPIO=y