arm64: defconfig: enable configs for WLAN and TI WL1835 as modules

This patch enables TI WL1835 and builds as module. It also enables
CFG80211, MAC80211, RFKILL and several CRYPTOs which are required
by WLAN.

96boards HiKey uses TI WLAN/BT combo module WL1835MOD.

Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>