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/ventana_defconfig b/configs/ventana_defconfig
index 0b1d0f7..f3389b0 100644
--- a/configs/ventana_defconfig
+++ b/configs/ventana_defconfig
@@ -14,6 +14,8 @@
CONFIG_USE_PREBOOT=y
CONFIG_SPL_FOOTPRINT_LIMIT=y
CONFIG_SPL_MAX_FOOTPRINT=0x8000
+# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
+CONFIG_SPL_STACK=0xffffc
CONFIG_SYS_PROMPT="Tegra20 (Ventana) # "
CONFIG_SYS_MAXARGS=64
CONFIG_SYS_PBSIZE=2085