CodeGen from PR 17948 in Azure/azure-rest-api-specs

[Hub Generated] Review request for Microsoft.Devices to add version stable/2022-02-05 (#17948)

* Adds base for updating Microsoft.Devices from version stable/2021-10-15 to version 2022-02-05

* Updates readme

* Updates API version in new specs and examples

* definition changes

* example changes

* no comments

* swagger modelval fix #1

* general validation fix #1

* revert readonly change (breaking change)

* added locatio pvtEp example

* misplaced location param

* location in PvtEConn response

* header addition

* headers #2

* example change with location sans spec

* header nesting change

* header under headers

* header example