Add @hide to the biometric interfaces

This change allows the framework to depend on biometric AIDL types, for
example: `android.hardware.biometrics.fingerprint.PointerContext`.

The dependency can be introduced with a `-java-source` target, for
example: `:android.hardware.biometrics.common-V3-java-source`.

The "@hide" annotation informs Metalava that these types are not a
public API (not part of the SDK).

Bug: 218388821
Test: m android.hardware.biometrics.common-update-api
Test: m android.hardware.biometrics.face-update-api
Test: m android.hardware.biometrics.fingerprint-update-api
Change-Id: Ib3327594c64dbb800b9d1744869ceb490d63e553
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index ff481f9..1778a19 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -121,7 +121,7 @@
     </hal>
     <hal format="aidl" optional="true">
         <name>android.hardware.biometrics.face</name>
-        <version>2</version>
+        <version>3</version>
         <interface>
             <name>IFace</name>
             <instance>default</instance>
@@ -129,7 +129,7 @@
     </hal>
     <hal format="aidl" optional="true">
         <name>android.hardware.biometrics.fingerprint</name>
-        <version>2</version>
+        <version>3</version>
         <interface>
             <name>IFingerprint</name>
             <instance>default</instance>