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/sama5d4_xplained_spiflash_defconfig b/configs/sama5d4_xplained_spiflash_defconfig
index e42b6f7..b41c6c7 100644
--- a/configs/sama5d4_xplained_spiflash_defconfig
+++ b/configs/sama5d4_xplained_spiflash_defconfig
@@ -39,6 +39,8 @@
CONFIG_MISC_INIT_R=y
CONFIG_SPL_MAX_SIZE=0x18000
CONFIG_SPL_BSS_MAX_SIZE=0x80000
+# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
+CONFIG_SPL_STACK=0x218000
CONFIG_SPL_DM_SPI_FLASH=y
CONFIG_SPL_SPI_LOAD=y
CONFIG_SYS_SPI_U_BOOT_OFFS=0x10000