kernel: add patches by Dave Täht to reduce buffer size in longer queues to reduce memory pressure

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

git-svn-id: svn://svn.openwrt.org/openwrt@36301 3c298f89-4303-0410-b956-a3cf2f4a3e73
kernel: tune fq_codel defaults for common netdevice speeds

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

git-svn-id: svn://svn.openwrt.org/openwrt@36302 3c298f89-4303-0410-b956-a3cf2f4a3e73