firmware-utils: bump to git HEAD

firmware-utils: bump to git HEAD

a170683 firmware-utils: fix use of NULL string progname
89875fc tplink-safeloader: CPE510: add Canadian support
9e211d2 mktplinkfw2: add support to extract bootloader images
c18f662 mktplinkfw2: add support to pack bootloader
3dc1339 mktplinkfw2: show exact exceed bytes when the image is to big
d16ff79 tplink-safeloader: WPA8631: add v4 AU, US
0fa1cc5 zytrx: add LTE5398-M904
6354661 firmware-utils: ptgen: add SiFive GPT partition support

The removed patch was applied upstream.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>