Add board_config_wpa_supplicant.mk from build repository

Bug: 395976122
Test: m hostapd_cli hostapd libhostapd_aidl wpa_cli wpa_supplicant \
        wpa_supplicant_macsec libwpa_client libwpa_aidl libpasn
Change-Id: Id2102e5ad833dbb4a24bbcf20f6b40bf515540fb
1 file changed