Bigsur m1 newlib41#101

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frangarcj wants to merge 8 commits intovitasdk:masterfrom

psp2dev:bigsur-m1-newlib41

Commits on Jun 17, 2021

Initial support for apple m1
psxdev
committed

Commits on Aug 1, 2021

fix short enum
psxdev
committed

Commits on Aug 8, 2021

back to vita on newlib and master on pthread
psxdev
committed