[P21] Add new test cases to WifiBridgedApTest.

Bug: 168305604.
Test: Local verify.
Change-Id: I2b2de1d63d54f4a4322c8cfa10642bf1acfc18a6
diff --git a/acts_tests/acts_contrib/test_utils/wifi/wifi_test_utils.py b/acts_tests/acts_contrib/test_utils/wifi/wifi_test_utils.py
index ef334eb..ed7ed22 100755
--- a/acts_tests/acts_contrib/test_utils/wifi/wifi_test_utils.py
+++ b/acts_tests/acts_contrib/test_utils/wifi/wifi_test_utils.py
@@ -305,6 +305,12 @@
         WIFI_BAND_BOTH_WITH_DFS: ALL_5G_FREQUENCIES + ALL_2G_FREQUENCIES
     }
 
+    # TODO: add all of the band mapping.
+    softap_band_frequencies = {
+        WIFI_CONFIG_SOFTAP_BAND_2G: ALL_2G_FREQUENCIES,
+        WIFI_CONFIG_SOFTAP_BAND_5G: ALL_5G_FREQUENCIES
+    }
+
     # All Wifi frequencies to channels lookup.
     freq_to_channel = {
         2412: 1,