Add comment to the Vendor HAL Android.bp file to

explain why the linter is disabled.

If the linter were enabled, we would run into a
build failure because fixed-size arrays are not
supported on SDK Level < 33. The interface indicates
min_sdk_version 30 due to mainline requirements,
but the interface will only be accessed by devices
running Android U.

Bug: 267819850
Test: m
Change-Id: Ifed2223d1c5f4bf46329ed72fa622b730e99cde1

wifi/aidl/Android.bp

@@ -37,6 +37,8 @@ aidl_interface {
             ],
             min_sdk_version: "30",
             lint: {
+                // Disable linter to avoid error about fixed size arrays.
+                // Interface will only be accessed on devices >= U.
                 enabled: false,
             },
         },