[Galaxy A8] Add NetHunter Kernel Support

Hi developers and maintainers :D, Today I've ported nh on galaxy A8 (after a5 why don't a8? :D ) Here are all kernel patch commits: Packet injection patch: https://github.com/DeadSquirrel01/nethunter-kernel-a8elte/commit/0b141b5431499276811f7fadcf6261a9f39c5114 HID gadget keyboard/mouse patch: https://github.com/DeadSquirrel01/nethunter-kernel-a8elte/commit/0132d6e88e7c20b023cf2fd9f518c4b99f08cbb0 CD-ROM patch for drivedroid: https://github.com/DeadSquirrel01/nethunter-kernel-a8elte/commit/80ae1d0460bcede7b70122b5fa5f71d05bb0f3ce

And the defconfig: https://github.com/DeadSquirrel01/nethunter-kernel-a8elte/edit/tw-6.0/arch/arm/configs/nethunter_a8elte_defconfig

Hope you appreciate :) Regards PS: it's not tested but at least it compiled :D