Change icon color into dark gray in EmergencyInfo

Change icon color into dark gray in Emergency Infomation screen and
Medical Information screen which is align Settings icon color.

Change-Id: I9f0dac2a94c3dc2c2ee143c0cfad77782210dde0
Fixes: 73726583
Test: Manual Test
diff --git a/res/drawable/ic_heart_black_24dp.xml b/res/drawable/ic_heart_black_24dp.xml
index 893337a..40084df 100644
--- a/res/drawable/ic_heart_black_24dp.xml
+++ b/res/drawable/ic_heart_black_24dp.xml
@@ -18,7 +18,7 @@
     android:height="24dp"
     android:viewportWidth="24.0"
     android:viewportHeight="24.0"
-    android:tint="#61000000">
+    android:tint="?android:attr/colorControlNormal">
     <path
         android:pathData="M12.67 20.74c-.38.34-.96.34-1.34 0l-.78-.71C5.3 15.27 1.87 12.16 2 8.28c.06-1.7.93-3.33 2.34-4.29 2.64-1.8 5.9-.96 7.66 1.1 1.76-2.06 5.02-2.91 7.66-1.1 1.41.96 2.28 2.59 2.34 4.29.14 3.88-3.3 6.99-8.55 11.76l-.78.7z"
         android:fillColor="#FFFFFFFF"/>