matrix: NN HAL uses .* instance.

Use regular expression. NN HAL is a new
HAL so this does not break OTA.

Bug: 73738616
Test: builds
Test: vts_treble_vintf_test (compatible and No deprecate HALs)
Change-Id: I1bfb916854c62fa75d341d4572a15a944178eb47
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index 370ffdd..fa70f9d 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -225,8 +225,7 @@
         <version>1.0</version>
         <interface>
             <name>IDevice</name>
-            <!-- TODO(b/73738616): This should be * (match any) -->
-            <instance>hvx</instance>
+            <regex-instance>.*</regex-instance>
         </interface>
     </hal>
     <hal format="hidl" optional="true">