[PATCH] Add M68k detection

[PATCH] Add M68k detection

- detect the M68k architecture (Motorola 68000) and define
  Q_PROCESSOR_M68K
- set the right machine type in QElfParser for M68k ELF files

Change-Id: Ie5694abbe1ae2bfeb5692defba0ca6062c1d60ac
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Gbp-Pq: Name upstream_Add-M68k-detection.patch