os/mac/hardware/cpu: update M3 values

[p-linnane]

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I ran brew config locally on an M3 processor and received this value: CPU: 14-core 64-bit dunno. I checked my hw.cpufamily using sysctl -a: hw.cpufamily: 1912690738. Converting this to hex results in the change I've pushed here. This change returns the correct value: CPU: 14-core 64-bit arm_everest_sawtooth

[Bo98]

Hmm ok seems like there's some unclarity here. Apple might have changed their naming system.

The values are:

#define CPUFAMILY_ARM_EVEREST_SAWTOOTH  0x8765edea
#define CPUFAMILY_ARM_IBIZA             0xfa33415e
#define CPUFAMILY_ARM_PALMA             0x72015832
#define CPUFAMILY_ARM_COLL              0x2876f5b5
#define CPUFAMILY_ARM_LOBOS             0x5f4dea93

Coll I think is Apple A17 Pro so can be ignored.

I think perhaps:
M3 = Ibiza
M3 Pro = Lobos
M3 Max = Palma

Is Everest Sawtooth used anywhere for M3? Previous PR linked to commits with that but I wonder if it's only used for A16 on iOS (M3 is believed to be based on A16).

The latest XNU open source unfortunately doesn't have the M3 processors yet.

[p-linnane]

Is Everest Sawtooth used anywhere for M3? Previous PR linked to commits with that but I wonder if it's only used for A16 on iOS (M3 is believed to be based on A16).

I haven't found anything conclusive on that front. I am on M3 Max, which correlates to what you've found.

[p-linnane]

@EricFromCanada let me know that M3 Pro is 0x5f4dea93, so your theory appears to be correct. I'll make adjustments to this PR to reflect this.

[Bo98]

Thanks!`