linux-firmware: Add new firmware image for ath6kl driver

This patch adds the inital version of newly formatted firmware
for ath6kl driver.
Signed-off-by: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

WHENCE

@@ -1716,6 +1716,7 @@ File: ath6k/AR6003/hw1.0/data.patch.bin
 File: ath6k/AR6003/hw1.0/bdata.WB31.bin
 File: ath6k/AR6003/hw1.0/athwlan.bin.z77
 File: ath6k/AR6003/hw2.1.1
+File: ath6k/AR6003/hw2.1.1/fw-2.bin
 File: ath6k/AR6003/hw2.1.1/otp.bin
 File: ath6k/AR6003/hw2.1.1/athwlan.bin
 File: ath6k/AR6003/hw2.1.1/endpointping.bin