[Suggestion] Fix setWpa3EnterpriseConfig

Add missing support for standard WPA3-Enterprise networks, which
are basically WPA2-Enterprise networks + PMF.
Add missing support in the Specifier as well, and add unit tests
to cover these use cases.
The logic detects 192-bit or standard mode by looking at the
certificates. If the certificates are Suite-B, then the 192-bit
mode is enabled. Otherwise, standard mode is enabled.

Bug: 166670837
Test: atest WifiNetworkSuggestionTest WifiNetworkSpecifierTest
Change-Id: I875d0d0584d71fe6dd3fedc8f5371e0b5ed2e5e5
Merged-In: I875d0d0584d71fe6dd3fedc8f5371e0b5ed2e5e5
(cherry picked from commit e1369b62)