linux-testing: 4.6-rc6 -> 4.7-rc6

The config option DEVPTS_MULTIPLE_INSTANCES now no longer exists since
torvalds/linux@eedf265aa003b4781de24cfed40a655a664457e6.

Built successfully on my Hydra instance:

https://headcounter.org/hydra/log/r4n6sv0zld0aj65r7l494757s2r8w8sr-linux-4.7-rc6.drv



Verified unpacked tarball with GnuPG:

ABAF 11C6 5A29 70B1 30AB  E3C4 79BE 3E43 0041 1886

gpg: Signature made Mon 04 Jul 2016 08:13:05 AM CEST
gpg:                using RSA key 79BE3E4300411886
gpg: Good signature from "Linus Torvalds <torvalds@linux-foundation.org>"

Signed-off-by: aszlig <aszlig@redmoonstudios.org>