Show Hotspot network icon (QS Internet Dialog)

- Show Hotspot device type icons without signal strength (no Wi-Fi level)

Bug: 268550769
Bug: 297346236
Test: manual test
atest -c InternetAdapterTest \
         InternetDialogControllerTest

Merged-In: I2ab807ad62aaa69c0f254bfc43baa8d18b7f9afe
Change-Id: I2ab807ad62aaa69c0f254bfc43baa8d18b7f9afe