kernel: add a config option for /proc page monitoring (useful for detailed memory usage info)

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40855 3c298f89-4303-0410-b956-a3cf2f4a3e73
procd: update, fixes a bunch of memleaks

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40856 3c298f89-4303-0410-b956-a3cf2f4a3e73