CRIS: Remove CONFIG_NO_IOMEM from ARTPEC-3 default config.

arch/cris/artpec_3_defconfig

@@ -13,7 +13,6 @@ CONFIG_GENERIC_FIND_NEXT_BIT=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_NO_IOPORT=y
-CONFIG_NO_IOMEM=y
 CONFIG_FORCE_MAX_ZONEORDER=6
 CONFIG_CRIS=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"