x86/intel: Add common OPTDIFFs

/*

 * "Big Core" Processors (Branded as Core, Xeon, etc...)

 *

 * The "_X" parts are generally the EP and EX Xeons, or the

 * "Extreme" ones, like Broadwell-E, or Atom microserver.

 *

 * While adding a new CPUID for a new microarchitecture, add a new

 * group to keep logically sorted out in chronological order. Within

 * that group keep the CPUID for the variants sorted by model number.

 * MICROARCH	Is the code name for the micro-architecture for this core.

 *		N.B. Not the platform name.

 * OPTDIFF	If needed, a short string to differentiate by market segment.

 *		Exact strings here will vary over time. _DESKTOP, _MOBILE, and

 *		_X (short for Xeon server) should be used when they are

 *		appropriate.

 *

 *		Common OPTDIFFs:

 *

 *			- regular client parts

 *		_L	- regular mobile parts

 *		_G	- parts with extra graphics on

 *		_X	- regular server parts

 *		_D	- micro server parts

 *

 *		Historical OPTDIFFs:

 *

 *		_EP	- 2 socket server parts

 *		_EX	- 4+ socket server parts

 *

 * The #define line may optionally include a comment including platform names.

 */

#define INTEL_FAM6_ATOM_GOLDMONT	0x5C /* Apollo Lake */

#define INTEL_FAM6_ATOM_GOLDMONT_D	0x5F /* Denverton */

/* Note: the micro-architecture is "Goldmont Plus" */

#define INTEL_FAM6_ATOM_GOLDMONT_PLUS	0x7A /* Gemini Lake */

#define INTEL_FAM6_ATOM_TREMONT_D	0x86 /* Jacobsville */