Convert CONFIG_SYS_CBSIZE to Kconfig
This converts the following to Kconfig:
CONFIG_SYS_CBSIZE
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/mscc_luton_defconfig b/configs/mscc_luton_defconfig
index 99e85ec..1a2db89 100644
--- a/configs/mscc_luton_defconfig
+++ b/configs/mscc_luton_defconfig
@@ -28,6 +28,7 @@
CONFIG_DISPLAY_CPUINFO=y
CONFIG_BOARD_EARLY_INIT_R=y
CONFIG_SYS_PROMPT="luton # "
+CONFIG_SYS_CBSIZE=256
CONFIG_SYS_PBSIZE=281
# CONFIG_CMD_BDI is not set
# CONFIG_CMD_CONSOLE is not set