[PERF] Add arm64 dynamic pgo runs

[LoopedBard3]

This adds dynamic PGO arm64 runs to our regularly scheduled runs. It seems that everything should be properly configured just by setting the pgoRunType to DynamicPgo which then sets COMPlus_TieredPGO=1.

This is essentially a PR to get Linux PGO scenarios on par with the Windows ones from: 6c31866

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Issue Details

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This adds dynamic PGO arm64 runs to our regularly scheduled runs. It seems that everything should be properly configured just by setting the pgoRunType to DynamicPgo which then sets COMPlus_TieredPGO=1.

Author:	LoopedBard3
Assignees:	LoopedBard3
Labels:	area-Infrastructure
Milestone:	-

[LoopedBard3]

Successful test (at least one of the logs for windows run succeeded) for arm64 dynamicPGO: https://dev.azure.com/dnceng/internal/_build/results?buildId=2177008&view=results

[LoopedBard3]

Test run for Linux x64: https://dev.azure.com/dnceng/internal/_build/results?buildId=2177810&view=results

[LoopedBard3]

All Perf pipeline tests resulted in passing data where this PR affected with the proper COMPLUS_Tiered...=1 being set. This also only impacts Perf Infrastructure so runtime pipeline failures are unrelated. Merging.