Tweak keyguard security flip animation timing.

This cuts the timing in half to give keyguard a snappier
response and allow the user to enter their credentials quicker.

Change-Id: I81cfb17d254cff34415bc3aa2d5de9f24faa9cc6

Author: Jim Miller

core/res/res/values/integers.xml

@@ -17,6 +17,6 @@
 */
 -->
 <resources>
-    <integer name="kg_security_flip_duration">150</integer>
-    <integer name="kg_security_fade_duration">150</integer>
+    <integer name="kg_security_flip_duration">75</integer>
+    <integer name="kg_security_fade_duration">75</integer>
 </resources>