Fixes KitchenSink flickering issue.

Flickering is caused by texts trying to be in the
center, though the texts length keeps changing. Fixes the issue by making texts
aligned on left side of the screen and padding some space on the left, so
that users have a good visibility of texts on the left side near screen edge.

Bug: b/144698249

Test: Running the app on a device.

Change-Id: Iab82c724def425d12e9ad19d8f0675365723364c
diff --git a/tests/EmbeddedKitchenSinkApp/res/layout/sensors.xml b/tests/EmbeddedKitchenSinkApp/res/layout/sensors.xml
index 6c4d945..3d7f320 100644
--- a/tests/EmbeddedKitchenSinkApp/res/layout/sensors.xml
+++ b/tests/EmbeddedKitchenSinkApp/res/layout/sensors.xml
@@ -23,7 +23,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:orientation="vertical"
-            android:layout_centerHorizontal="true">
+            android:layout_marginLeft="30dp">
         <TextView
             android:id="@+id/location_title"
             android:layout_width="wrap_content"
@@ -59,9 +59,8 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:orientation="vertical"
-            android:layout_centerHorizontal="true"
-            android:layout_below="@+id/location_layout"
-            android:layout_alignStart="@+id/location_layout">
+            android:layout_marginLeft="30dp"
+            android:layout_below="@+id/location_layout">
         <TextView
             android:id="@+id/sensor_title"
             android:layout_width="wrap_content"