Update Android V compatibility matrix

...to drop 5.15 and add 6.6.

Bug: 311450232
Change-Id: I5743f9fb403c3d1aa2d97f74f37d7ea61fe8b359
diff --git a/compatibility_matrices/Android.bp b/compatibility_matrices/Android.bp
index b3ca293..9bee3b9 100644
--- a/compatibility_matrices/Android.bp
+++ b/compatibility_matrices/Android.bp
@@ -90,7 +90,7 @@
         "compatibility_matrix.9.xml",
     ],
     kernel_configs: [
-        "kernel_config_v_5.15",
         "kernel_config_v_6.1",
+        "kernel_config_v_6.6",
     ],
 }