skpbench: filter out junk spewed by Pixel C driver

tools/skpbench/_hardware_pixel_c.py

Index: tools/skpbench/_hardware_pixel_c.py
diff --git a/tools/skpbench/_hardware_pixel_c.py b/tools/skpbench/_hardware_pixel_c.py
index 3ea74c1c03ea651c7c5ab9b2e026141fba38ac49..e6924a38ade0de179b1172a47afa4ca03caa6189 100644
--- a/tools/skpbench/_hardware_pixel_c.py
+++ b/tools/skpbench/_hardware_pixel_c.py
@@ -23,6 +23,11 @@ class HardwarePixelC(HardwareAndroid):
                              exception_value, exception_traceback)
     self._unlock_clocks()
 
+  def filter_line(self, line):
+    JUNK = ['NvRmPrivGetChipPlatform: Could not read platform information',
+            'Expected on kernels without fuse support, using silicon']
+    return False if line in JUNK else HardwareAndroid.filter_line(self, line)
+
   def _lock_clocks(self):
     if not self._is_root:
       return