defconfig: re-enable bfq and row io-schedulers

And make ROW default again

Change-Id: I555fcd301a638be31e8904815f5b98b41749ef54
defconfig: go back to lagfree as default governor

Change-Id: I9112f7297a3d55b06857f9504d3d3f5d46ebf9df
defconfig: re-enable nfconntrack for ipv6

Change-Id: I458656f3f449a13131f6175eff38dadfab431c53
defconfig: enable bcm4329

Change-Id: I562ae26c72dc79fcc928cfffd5dc1e1fc9d7dfcc