ath9k_htc: revert versions in WHENCE to 1.3.1

commit 21a6c3e5

 reverted htc_7010.fw and htc_9271.fw
to 1.3.1
Signed-off-by: Kyle McMartin <kyle@kernel.org>

WHENCE

@@ -465,9 +465,9 @@ File: ar9271.fw
 File: ar7010.fw
 File: ar7010_1_1.fw
 File: htc_9271.fw
-Version: 1.4
+Version: 1.3.1
 File: htc_7010.fw
-Version: 1.4
+Version: 1.3.1
 
 Licence: Redistributable. See LICENCE.atheros_firmware for details