[PULL] btqca firmware 20200401

Hi linux-firmware maintainers,

Here's a pull request for btqca bluetooth driver. Please let me know if 
you have any problems.

The following changes since commit
74ac3b5a7e7962cd1135ef691c72d48cb5210251:

    Merge https://github.com/bgodavar/qca_wcn3991 into main (2020-07-02 
08:23:09 -0400)

are available in the Git repository at:

    https://github.com/rjliao-qca/qca-btfw.git

for you to fetch changes up to c4e04b49b46a3e3e4c0bf4a3007f352d09c7ae0c:
----------------------------------------------------------------
Rocky Liao (1):
         QCA: Update Bluetooth firmware for QCA6390 (2020-07-07 12:45:15 
+0800)