workloads/gfxbench: Do not clear package data on launch

By clearing the application data each time the workload is run this
forces the required assets to be re-installed each time. As the
workload is not affected by persistent state do not perform the
clearing.

wa/workloads/gfxbench/__init__.py

@@ -21,6 +21,7 @@ class Gfxbench(ApkUiautoWorkload):
 
     name = 'gfxbench-corporate'
     package_names = ['net.kishonti.gfxbench.gl.v50000.corporate']
+    clear_data_on_reset = False
     regex_matches = [re.compile(r'Car Chase score (.+)'),
                      re.compile(r'Car Chase Offscreen score (.+)'),
                      re.compile(r'Manhattan 3.1 score (.+)'),