Fix a lint warning in support-cardview.

Bug: 62349821
Test: None
Change-Id: I1897e9e73588c43d8d452fe2b3107835a6b37bd3
diff --git a/v7/cardview/src/android/support/v7/widget/CardView.java b/v7/cardview/src/android/support/v7/widget/CardView.java
index fab9453..3df45d9 100644
--- a/v7/cardview/src/android/support/v7/widget/CardView.java
+++ b/v7/cardview/src/android/support/v7/widget/CardView.java
@@ -196,6 +196,9 @@
                     widthMeasureSpec = MeasureSpec.makeMeasureSpec(Math.max(minWidth,
                             MeasureSpec.getSize(widthMeasureSpec)), widthMode);
                     break;
+                case MeasureSpec.UNSPECIFIED:
+                    // Do nothing
+                    break;
             }
 
             final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
@@ -206,6 +209,9 @@
                     heightMeasureSpec = MeasureSpec.makeMeasureSpec(Math.max(minHeight,
                             MeasureSpec.getSize(heightMeasureSpec)), heightMode);
                     break;
+                case MeasureSpec.UNSPECIFIED:
+                    // Do nothing
+                    break;
             }
             super.onMeasure(widthMeasureSpec, heightMeasureSpec);
         } else {