ath10k-firmware: update Candela Tech firmware images

ath10k-firmware: update Candela Tech firmware images

wave-1:

2019-05-09: Tweak rate-ctrl:  Ramp PER up faster, down slower.  This
	    helps throughput in rate-vs-range test, especially with
	    nss1.

2019-05-20: Disable adaptive-CCA.  I am not sure it helps, and it may
	    make it slower to detect noise that should tell the system
	    to stop transmitting.  If someone has means to test this
	    properly, I'd be happy to work with them.

wave-2:

2019-05-15: Fix problem where rate-ctrl sometimes used rix of 0x0.

2019-05-15: Allow raw-tx of encrypted frame.  Requires a patch to the
	    driver to use raw mode when skb has WEP flag enabled AND
	    skb is flagged to not be encrypted.  Lightly tested.

2019-05-16: Fix tx-hang that happened when rate-ctrl chose an OFDM rate
	    for 20Mhz and sent that as AMPDU.  To fix, limit to (V)HT
	    rates if peer is (V)HT.  It seems that MCS0 (V)HT20 should
	    have as good of a chance of being detected as CCK or OFDM.

2019-06-06: Disable TX-BFEE, TX-BFER for IBSS connections.  I suspect
	    this is part of the tx-hang issue seen with IBSS between
	    two 9984 radios.

2019-06-12: Fix rx-rate reporting in 'fw_stats' logic.  This was at
	    least partly due to regressions I had added earlier when
	    working on some multi-vdev enhancements.

2019-6-12: Fix case where extd peer-stats were not always populated.
	   The stats gathering code did not handle error conditions
	   well.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>