Enable instant and ABI XML tags for API 22 networking tests.

The netlegacy.22.api and netlegacy22.permission modules test
methods that only work up to SDK 22, and instant apps only target
SDK 26 or above.

Neither of these modules use native code, so declare them
not_multi_abi.

Fix: 123366393
Fix: 123367016
Test: atest CtsNetTestCasesLegacyPermission22 CtsNetTestCasesLegacyApi22
Change-Id: Iab7b0093e8db93c0f4c1d0decff36d9d5c7e8841