wifi driver fails to load firmware on keel 4.6.0-rc2

Distro - Ubuntu-14.04.

For development purposes I built and installed 4.6.0-rc2 keel. All works well except wifi:

% dmesg
...
[    9.092503] Intel(R) Wireless WiFi driver for Linux
[    9.092506] Copyright(c) 2003- 2015 Intel Corporation
[    9.092771] iwlwifi 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM
control
[    9.123636] iwlwifi 0000:02:00.0: Driver unable to support your firmware API.
Driver supports v6, firmware is v313001473.
[    9.150090] iwlwifi 0000:02:00.0: Direct firmware load for
iwlwifi-2030-5.ucode failed with error -2
[    9.150095] iwlwifi 0000:02:00.0: no suitable firmware found!

It looks like I need another version of microcode for my wifi chipset, but version is being expected, or I should try different from https://git.keel.org/cgit/linux/keel/git/iwlwifi/linux-firmware.git/tree/?

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