ITS: reduce minimum pixel size to 0.5um

files affected:
  scene0/test_metadata.py

Bug: 226125320
Change-Id: Id06ebb083b02fcf9891851f2cefa1413416e8209
Merged-In: I84b8c868a1fd86bcabd21d2af568f5afca8ec6ac
diff --git a/apps/CameraITS/tests/scene0/test_metadata.py b/apps/CameraITS/tests/scene0/test_metadata.py
index b0995a7..e5b1c879 100644
--- a/apps/CameraITS/tests/scene0/test_metadata.py
+++ b/apps/CameraITS/tests/scene0/test_metadata.py
@@ -132,8 +132,8 @@
         pixel_pitch_w = (sensor_size['width'] / fmts[0]['width'] * 1E3)
         logging.debug('Assert pixel_pitch WxH: %.2f um, %.2f um', pixel_pitch_w,
                       pixel_pitch_h)
-        assert 0.7 <= pixel_pitch_w <= 10
-        assert 0.7 <= pixel_pitch_h <= 10
+        assert 0.5 <= pixel_pitch_w <= 10
+        assert 0.5 <= pixel_pitch_h <= 10
         assert 0.333 <= pixel_pitch_w/pixel_pitch_h <= 3.0
 
         diag = math.sqrt(sensor_size['height']**2 + sensor_size['width']**2)