Override package name for VNDK APEX

com.android.vndk.v<VER> is overridden with
com.google.android.vndk.v<VERE>.

Test: m com.android.vndk.current
    && aapt2 dump badging ../system/apex/com.android.vndk.current.apex
Change-Id: I623d7a144418d7198f0bbf09c5dc983ed1a631c6
Merged-In: I623d7a144418d7198f0bbf09c5dc983ed1a631c6
(cherry picked from commit 0ed1b1b169)

apex/apex.go

@@ -724,7 +724,13 @@ func (a *apexBundle) DepIsInSameApex(ctx android.BaseModuleContext, dep android.
 }
 
 func (a *apexBundle) getCertString(ctx android.BaseModuleContext) string {
-	certificate, overridden := ctx.DeviceConfig().OverrideCertificateFor(ctx.ModuleName())
+	moduleName := ctx.ModuleName()
+	// VNDK APEXes share the same certificate. To avoid adding a new VNDK version to the OVERRIDE_* list,
+	// we check with the pseudo module name to see if its certificate is overridden.
+	if a.vndkApex {
+		moduleName = vndkApexName
+	}
+	certificate, overridden := ctx.DeviceConfig().OverrideCertificateFor(moduleName)
 	if overridden {
 		return ":" + certificate
 	}