packages: update pps-tools, allow building on more recent kernels

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/packages@42626 3c298f89-4303-0410-b956-a3cf2f4a3e73
pps-tools: moved to github

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/packages@42632 3c298f89-4303-0410-b956-a3cf2f4a3e73
Merge branch 'master' of http://git.openwrt.org/packages