Add a global error tolerance of 4 to the SkQP Android.bp build file

Change-Id: Iceebd0e153351cad1c2784daf6cabcc8f3bb8ebf
Reviewed-on: https://skia-review.googlesource.com/103720
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Derek Sollenberger <djsollen@google.com>

tools/skqp/gn_to_bp.py

@@ -121,10 +121,13 @@ cc_library_shared {
 
 # We'll run GN to get the main source lists and include directories for Skia.
 gn_args = {
-  'is_debug':   'false',
   'target_cpu': '"none"',
   'target_os':  '"android"',
+
+  # setup skqp
+  'is_debug':   'false',
   'ndk_api':    '26',
+  'skia_skqp_global_error_tolerance': '4',
 
   # setup vulkan
   'skia_use_vulkan':    'true',