Bump maximal Java heap size for CarSystemUITests

The tests fail to compile with DEX v41 and coverage

CarSystemUI already has similar word-around

Bug: 301283770
Test: lunch cf_x86_64_phone-trunk_staging-userdebug; \
      export EMMA_INSTRUMENT=true; \
      export EMMA_INSTRUMENT_FRAMEWORK=true; \
      m CarSystemUITests
Change-Id: I3ece927f2059e3274b667a99c8aeeabab893c615
1 file changed