configs: Migrate CONFIG_SYS_MAX_FLASH_BANKS to Kconfig

Use moveconfig.py script to convert define CONFIG_SYS_MAX_FLASH_BANKS
and CONFIG_SYS_MAX_FLASH_BANKS_DETECT to Kconfig and move these entries
to defconfigs.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
[trini: Re-switch to IS_ENABLED check in spi-nor-core.c, re-run migration]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/boston64r2_defconfig b/configs/boston64r2_defconfig
index b8724e9..6794eb8 100644
--- a/configs/boston64r2_defconfig
+++ b/configs/boston64r2_defconfig
@@ -42,6 +42,7 @@
 CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
 CONFIG_SYS_FLASH_PROTECTION=y
 CONFIG_SYS_FLASH_CFI=y
+CONFIG_SYS_MAX_FLASH_BANKS_DETECT=y
 CONFIG_DM_ETH=y
 CONFIG_PCH_GBE=y
 CONFIG_PCI=y