Fix Settings usb preference search

* Invert isPageSearchEnabled check

Bug: 192449168
Test: manual testing with TestDPC
Change-Id: I91dcf930485ad16a83cb04bf170c9608c1768ea2
diff --git a/src/com/android/settings/connecteddevice/usb/UsbDetailsFragment.java b/src/com/android/settings/connecteddevice/usb/UsbDetailsFragment.java
index 8d14cf9..8850acd 100644
--- a/src/com/android/settings/connecteddevice/usb/UsbDetailsFragment.java
+++ b/src/com/android/settings/connecteddevice/usb/UsbDetailsFragment.java
@@ -107,7 +107,7 @@
                 @Override
                 protected boolean isPageSearchEnabled(Context context) {
                     return checkIfUsbDataSignalingIsDisabled(
-                            context, UserHandle.myUserId()) != null;
+                            context, UserHandle.myUserId()) == null;
                 }
 
                 @Override