configs: nuvoton: npcm8xx: Disable CONFIG_SPI_FLASH_USE_4K_SECTORS

disable this config to improve flash program time

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
diff --git a/configs/arbel_evb_defconfig b/configs/arbel_evb_defconfig
index 8c32b4b..6cfb5a7 100644
--- a/configs/arbel_evb_defconfig
+++ b/configs/arbel_evb_defconfig
@@ -58,6 +58,7 @@
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_WINBOND=y
+# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
 CONFIG_PHY_BROADCOM=y
 CONFIG_PHY_GIGE=y
 CONFIG_ETH_DESIGNWARE=y