Made keyguard pattern view unfocusable

Keyguard pattern view was receiving focus, causing a gray rectangular
background to show up when a physical keyboard was
connected, which isn't intended behavior as physical keyboards cannot
and should not interact with the pattern view.

Fixes: 328650320
Test: Manual - set lock screen auth method to pattern, wake up tablet
with spacebar/enter, ensure that there is no gray rectangle over the
pattern view.
Flag: NA

Change-Id: I768174728eeb269b04d927c25535d586b9a2a6d8
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_pattern_motion_layout.xml b/packages/SystemUI/res-keyguard/layout/keyguard_pattern_motion_layout.xml
index b562d7b..6780e57 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_pattern_motion_layout.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_pattern_motion_layout.xml
@@ -85,6 +85,7 @@
             android:layout_width="0dp"
             android:layout_height="0dp"
             android:layout_marginBottom="8dp"
+            android:focusable="false"
             androidprv:layout_constraintVertical_bias="1.0"
             androidprv:layout_constraintDimensionRatio="1.0"
             androidprv:layout_constraintStart_toStartOf="parent"
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml b/packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml
index d9011c2..d991581 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml
@@ -57,6 +57,7 @@
             android:id="@+id/lockPatternView"
             android:layout_width="0dp"
             android:layout_height="0dp"
+            android:focusable="false"
             androidprv:layout_constraintTop_toBottomOf="@id/pattern_top_guideline"
             androidprv:layout_constraintBottom_toBottomOf="parent"
             androidprv:layout_constraintLeft_toLeftOf="parent"