overlay: Downgrade the biometrics security to WEAK

FP3 biometrics testing under new Android 12/13 protocols only grants
"BIOMETRIC_WEAK" (class 2), not strong biometrics security level
anymore.

Issue: FP3-A13#39
Change-Id: Ibae8922419a95a8ef53b2e65da619452f5dd3ed7
diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index e08f195..70dccf0 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -316,7 +316,7 @@
          where: IDs are unique per device, Modality as defined in BiometricAuthenticator.java,
          and Strength as defined in Authenticators.java -->
     <string-array name="config_biometric_sensors" translatable="false" >
-        <item>0:2:15</item> <!-- ID0:Fingerprint:Strong -->
+        <item>0:2:255</item> <!-- ID0:Fingerprint:Weak -->
     </string-array>