Nexus 6: b10-t4 / b4-t4-M2

Test build:

-Reverted caf mmc stuff

hC-b4-t4-M2

hC-b4-t4-M2-mako

hC-b10-t4-ZEN

hC-b10-t4-mako

Nexus 6: b10-t3 / b4-t3-M2

I've played around with some commits to improve the already good base we have. This time I merged a lot of gpu stuff and block/filesystem things. I reverted some of the wi-fi patches, because some users experienced disconnects/unstable wi-fi.

Changelog:
-kgsl patches from caf
-ext4 from upstream
-blk-throttle from mainline
-mmc/block srtuff from caf
-reverted wi-fi driver to a more stable state

hC-b4-t3-M2

hC-b4-t3-M2-mako

hC-b10-t3-ZEN

hC-b10-t3-mako

Have fun! (=

hells