mpc85xx: revert the napi polling code to the one from an older kernel version to fix stability issues (#14020)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38409 3c298f89-4303-0410-b956-a3cf2f4a3e73
[package] uci: upgrade to latest git version

Fixes issues with UBIFS file system when due to unclean shutdown files would
end up with size 0. Furthermore, few style fixes are included too.

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38410 3c298f89-4303-0410-b956-a3cf2f4a3e73