Comment # 7 on bug 1176757 from Stefan Dirsch

This could be a duplicate of boo#1177256 (firware files missing for booted
kernel). Possible workaround would be (while running old kernel)

1. Remove line

  fw_dir+="/lib/firmware/5.3.18-lp152.36-default"

in /etc/dracut.conf.d/amdgpu.conf

2. Copy existing firmware files in /lib/firmware/ 5.3.18-lp152.36-default to
new directory /lib/firmware/5.3.18-lp152.44.1-default

  cp -r  /lib/firmware/ 5.3.18-lp152.36-default
/lib/firmware/5.3.18-lp152.44.1-default

3. Regenerate initrd

  mkinitrd

Please have a try. But honestly nobody ever tried this. You would be the first
one ....

4. Reboot new kernel