samsung-i9195: port to armv7 and enable swrast

Ported succesfully to armv7. Everything that worked on armhf works on armv7 as well: touch, wifi, usb networking etc.

SWRast was not enabled but is needed because the device does not support 3D acceleration yet. I had to disable the ARM NEON related cryptography in the kernel config because of the famous thumb conditional instruction should be in IT block error.