Add a NVRAM file for the brcmfmac43241b4 wifi chip found on the mainboard
of the Advantech MICA-071 tablet. This is based on a copy of the existing
"brcmfmac43241b4-sdio.Intel Corp.-VALLEYVIEW C0 PLATFORM.txt" NVRAM file
with various parameters changed to match the Advantech MICA-071.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>