Could you help me please to make my intel 7260ac wifi+bt adapter work 
correctly?

I bought it recently and installed in my laptop. Wifi works perfectly 
(iwlwifi + firmware), while bluetooth controller isn't detected with 
lspci, lshw completely.

I found that Tedd Ho-Jeong An released bluetooth firmware for this card.
So I installed linux-firmware-git package, which contain needed 
intel/ibt-hw-37.7.10-fw-1.0.2.3.d.bseq file.
I wrote to load btusb module in /etc/modules-load/
I don't know how to force btusb driver to load firmware file.
What could be the problem with detection only wireless network 
controller, but not bluetooth?

I attach lspci -v, lshw and dmesg output for completeness.

Thank you in advance.