Add value for FUEL_VOLUME_DISPLAY_UNITS in default config.

Bug: 232859264
Fix: 221916124
Test: Tested manually in KitchenSink app

Change-Id: I8c0bf768210037f655d76848d8b4aadf047838f3
(cherry picked from commit fccd300be6370ebcf07bb6457e8f97161cc56096)
1 file changed