db845c: firmware: Add Qcom RB3 firmware files

Copied Qcom firmware files and license from
RB3_firmware_20190529180356-v3.zip
http://releases.linaro.org/96boards/dragonboard845c/qualcomm/firmware/RB3_firmware_20190529180356-v3.zip

Also added utils.mk helper script which will contain
useful build/install macros going forward.
add-qcom-firmware() to start with.

Change-Id: Iabef654d79ba2562929ae99c5d36f1439802b408
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
90 files changed