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/apple_m1_defconfig b/configs/apple_m1_defconfig
index 6bba71c..c4fd803 100644
--- a/configs/apple_m1_defconfig
+++ b/configs/apple_m1_defconfig
@@ -6,6 +6,7 @@
# CONFIG_DISPLAY_CPUINFO is not set
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_BOARD_LATE_INIT=y
+CONFIG_SYS_CBSIZE=256
CONFIG_SYS_PBSIZE=276
# CONFIG_NET is not set
CONFIG_APPLE_SPI_KEYB=y