Fix initramfs generation issues by blacklisting raspi-firmware

mods/firmware-proprietary/data/chroot

@@ -5,6 +5,7 @@ ofile = open("/chroot-out","w",encoding="utf-8")
 ofile.write('WDVN_PACKAGES="$WDVN_PACKAGES')
 for package in cache:
 	if "nvidia" in package.name.lower(): continue
+	if package.name == "raspi-firmware": continue
 	if package.candidate.origins[0].component == "non-free-firmware":
 		ofile.write(" " + package.name)
 ofile.write('"')