CONFIG_R5900_128BIT_SUPPORT

Experimental update for Playstation 2

Squashed commit based on ps2-v2.6.35.14 with contributions from
Jürgen Urban, Rick Gaiser, et al.

Experimental update for Playstation 2

Squashed commit based on ps2-v2.6.35.14 with contributions from
Jürgen Urban, Rick Gaiser, et al.

kernel: add support for gcc 6 (copy of gcc 5)

Merge branch 'master' of https://github.com/jur/linux-2.2.1-ps2