wifi(vts): Separate P2P specific tests

Similar to how NAN specific tests were separated from wifi HAL VTS
test suite, separate out P2P specific tests in wpa_supplicant HAL VTS test
suite.
Changes in the CL:
a) Use the |gEnv->isP2pOn| flag to skip P2P tests in SupplicantHidlTest.
b) Seprare SupplicantP2pIfaceHidlTest into a new test module.

Bug: 73306751
Test: Ran VTS tests
vts-tradefed run commandAndExit vts-hal --skip-all-system-status-check --primary-abi-only --skip-preconditions --module VtsHalWifiSupplicantV1_0Host -l INFO
vts-tradefed run commandAndExit vts-hal --skip-all-system-status-check --primary-abi-only --skip-preconditions --module VtsHalWifiSupplicantV1_1Host -l INFO
vts-tradefed run commandAndExit vts-hal --skip-all-system-status-check --primary-abi-only --skip-preconditions --module VtsHalWifiSupplicantP2pV1_0Target -l INFO

Change-Id: I65de3ff5cde023bfba2ac3a6c38ff9ad680de8bc