wazevo(amd64): support for atomic CAS #4042

Job	Run time
Build TinyGo test binary	7s
Build Zig test binary	6s
Go-1.21 (Ubuntu, amd64, baseline)	3m 58s
Go-1.22 (Ubuntu, amd64, baseline)	3m 54s
libsodium (Ubuntu, amd64, optimizing)	3m 54s
Go-1.21 (macOS, amd64, baseline)	1s
wasi-testsuite (ubuntu-22.04)	26s
libsodium (macOS, arm64, optimizing)	1m 51s
Go-1.22 (macOS, amd64, baseline)	5s
wasi-testsuite (macos-12)	1m 4s
Go-1.21 (Windows, amd64, baseline)	3m 46s
wasi-testsuite (windows-2022)	2m 8s
Go-1.22 (Windows, amd64, baseline)	3m 49s
Go-1.21 (macOS, arm64, optimizing)	1s
Go-1.22 (macOS, arm64, optimizing)	1s
Go-1.21 (Ubuntu, amd64, optimizing)	3m 52s
Go-1.22 (Ubuntu, amd64, optimizing)	3m 52s
Zig (Ubuntu, amd64, baseline)	3m 38s
Zig (macOS, amd64, baseline)	1s
Zig (Windows, amd64, baseline)	3m 35s
Zig (macOS, arm64, optimizing)	1s
Zig (Ubuntu, amd64, optimizing)	1m 49s
TinyGo (Ubuntu, amd64, baseline)	1m 53s
TinyGo (macOS, amd64, baseline)	1s
TinyGo (Windows, amd64, baseline)	2m 49s
TinyGo (macOS, arm64, optimizing)	1s
TinyGo (Ubuntu, amd64, optimizing)	2m 43s
	49m 26s

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