Wifi: Uprev wifi HAL to 1.6

This commit uprevs the Wifi vendor HAL to 1.6

Bug: 214108561
Test: atest VtsHalWifiV1_0TargetTest VtsHalWifiNanV1_0TargetTest VtsHalWifiApV1_0TargetTest \
            VtsHalWifiV1_1TargetTest \
            VtsHalWifiV1_2TargetTest VtsHalWifiNanV1_2TargetTest \
            VtsHalWifiV1_3TargetTest \
            VtsHalWifiApV1_4TargetTest VtsHalWifiNanV1_4TargetTest VtsHalWifiRttV1_4TargetTest \
            VtsHalWifiV1_5TargetTest VtsHalWifiNanV1_5TargetTest VtsHalWifiApV1_5TargetTest
Change-Id: I059a5de346e353f7fba1e008ecd9fb4611e66880
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index cf85688..aaebb6b 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -777,7 +777,7 @@
     </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.wifi</name>
-        <version>1.3-5</version>
+        <version>1.3-6</version>
         <interface>
             <name>IWifi</name>
             <instance>default</instance>