codec2 hal: add sysprop for HAL selection

Bug: 251850069
Test: run the example service and confirm the selection works
Change-Id: I0875989ab46c937b6749096d0b5f1805ea5eb02e
diff --git a/media/codec2/hal/aidl/Android.bp b/media/codec2/hal/aidl/Android.bp
index a6a6b77..a313250 100644
--- a/media/codec2/hal/aidl/Android.bp
+++ b/media/codec2/hal/aidl/Android.bp
@@ -36,6 +36,7 @@
     ],
 
     static_libs: [
+        "libPlatformProperties",
         "libaidlcommonsupport",
     ],
 
@@ -97,6 +98,7 @@
     ],
 
     static_libs: [
+        "libPlatformProperties",
         "libaidlcommonsupport",
     ],