Added a check for a macro to specify that an ARM device is not a mobile platform - copying the existing mechanism for Raspberry Pi.
Added a check for a macro to specify that an ARM device is not a mobile platform - copying the existing mechanism for Raspberry Pi.

alistairlow/tensorflow,alistairlow/tensorflow,alistairlow/tensorflow,alistairlow/tensorflow,alistairlow/tensorflow,alistairlow/tensorflow,alistairlow/tensorflow,alistairlow/tensorflow,alistairlow/tensorflow,alistairlow/tensorflow