Fix for WifiEnterpriseTest autotest failure

WifiEnterpriseTest fails in autotest.
This does not happen while running manually.
Manual runs use Python3 and autotest use Python2.7.
Dictionary with enum objects values are read as string in Python2.7

Updated WifiEnterpriseRoamingTest with the same. Since, we did not
have any autotest run so far, we did not see this issue.

Updated wifi_test_utils - expand_enterprise_config_by_phase2()
Only these two scripts depend on this function

Added generate_eap_test_name to wifi_test_utils

Bug: 35203145
Test: Verified the fix on Python2.7 and Python3
Change-Id: I203a3feb36ca86fce1f3691e3c84027e35339b87
3 files changed
tree: 59de0f5afcc85990c1f8376af47ae7808c7aa5d4
  1. acts/
  2. tools/
  3. Android.mk
  4. PREUPLOAD.cfg