[SIlabs] Refactor GetMacAddress function and initial clean up of the Notify functions #98079

Job	Run time
Build framework (macos-release, -sdk macosx -configuration Release)	14m 46s
Build framework (macos-release, -sdk macosx -configuration Release)	14m 46s
Build framework (ios-release, -sdk iphoneos -configuration Release)	9m 35s
Build framework (ios-release, -sdk iphoneos -configuration Release)	9m 35s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	11m 36s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	11m 36s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	9m 32s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	9m 32s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	40m 27s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	40m 27s
Run framework tests (tsan, -enableThreadSanitizer YES)	38m 43s
Run framework tests (tsan, -enableThreadSanitizer YES)	38m 43s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	42m 28s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	40m 41s
	5h 32m 27s

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