uboot-envtools: ath79: add support for ALFA Network Tube-2HQ

Signed-off-by: Piotr Dymacz <[email protected]>

package/boot/uboot-envtools/files/ath79

@@ -18,6 +18,7 @@ alfa-network,n2q|\
 alfa-network,n5q|\
 alfa-network,pi-wifi4|\
 alfa-network,r36a|\
+alfa-network,tube-2hq|\
 allnet,all-wap02860ac|\
 arduino,yun|\
 buffalo,bhr-4grv2|\