dumpstate: dump qtaguid info, ip6tables info, buddyinfo

This will add around 50-120 lines for qtaguid info and 50-100 for ip6tables.
The /proc/buddyinfo is for kernels where /proc/pagetypeinfo is
not accurate (ones with more than one memory node, 2.6.35).


Change-Id: I7fad53209c706d88e33e5ae824486b84941c02b6