wifi: put vintf fragment into wifi apex

The AOSP-version of wifi hal apex now contains the VINTF fragment in it.

Bug: 247018693
Bug: 266885060
Test: atest CtsWifiTestCases
Change-Id: Id8f196386967c3023cb5ee308d31b8cdeed7df0b

compatibility_matrices/compatibility_matrix.8.xml

@@ -723,7 +723,7 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <hal format="aidl" optional="true">
+    <hal format="aidl" optional="true" updatable-via-apex="true">
         <name>android.hardware.wifi</name>
         <version>1</version>
         <interface>

wifi/apex/Android.bp

@@ -30,6 +30,7 @@ prebuilt_etc {
     name: "com.android.hardware.wifi.xml",
     src: ":default-android.hardware.wifi-service.xml",
     installable: false,
+    sub_dir: "vintf",
 }
 
 apex {
@@ -38,7 +39,6 @@ apex {
     key: "com.android.hardware.wifi.key",
     certificate: ":com.android.hardware.wifi.certificate",
     file_contexts: "file_contexts",
-    vintf_fragments: [":com.android.hardware.wifi.xml"],
     use_vndk_as_stable: true,
     updatable: false,
     soc_specific: true,

wifi/apex/file_contexts

@@ -1,3 +1,3 @@
-(/.*)? 								u:object_r:vendor_file:s0
+(/.*)?                                          u:object_r:vendor_file:s0
+/etc(/.*)?                                      u:object_r:vendor_configs_file:s0
 /bin/hw/android\.hardware\.wifi-service			u:object_r:hal_wifi_default_exec:s0
-