hidapi: Replace BSD license with "original" hidapi license.

HIDAPI's source code licensing says this:

```
HIDAPI can be used under one of three licenses.

1. The GNU General Public License, version 3.0, in LICENSE-gpl3.txt
2. A BSD-Style License, in LICENSE-bsd.txt.
3. The more liberal original HIDAPI license. LICENSE-orig.txt

The license chosen is at the discretion of the user of HIDAPI. For example:
1. An author of GPL software would likely use HIDAPI under the terms of the
GPL.

2. An author of commercial closed-source software would likely use HIDAPI
under the terms of the BSD-style license or the original HIDAPI license.
```

Since the original license in LICENSE-orig.txt is basically only clause 3 of
the zlib license (do not remove this notice from the source code), it makes
sense to switch to it, since it adds no new requirements to the user.

(Plus, it's extremely short and direct, which is always nice.)

The entire license:

```
 HIDAPI - Multi-Platform library for
 communication with HID devices.

 Copyright 2009, Alan Ott, Signal 11 Software.
 All Rights Reserved.

 This software may be used by anyone for any reason so
 long as the copyright notice in the source files
 remains intact.
```

Fixes #9786.

include/SDL3/SDL_hidapi.h

@@ -27,37 +27,23 @@
  * Header file for SDL HIDAPI functions.
  *
  * This is an adaptation of the original HIDAPI interface by Alan Ott, and
- * includes source code licensed under the following BSD license:
+ * includes source code licensed under the following license:
  *
  * ```
- *  Copyright (c) 2010, Alan Ott, Signal 11 Software
- *  All rights reserved.
- *
- *  Redistribution and use in source and binary forms, with or without
- *  modification, are permitted provided that the following conditions are met:
- *
- *  * Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *  * Neither the name of Signal 11 Software nor the names of its
- *    contributors may be used to endorse or promote products derived from
- *    this software without specific prior written permission.
- *
- *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- *  POSSIBILITY OF SUCH DAMAGE.
+ * HIDAPI - Multi-Platform library for
+ * communication with HID devices.
+ *
+ * Copyright 2009, Alan Ott, Signal 11 Software.
+ * All Rights Reserved.
+ *
+ * This software may be used by anyone for any reason so
+ * long as the copyright notice in the source files
+ * remains intact.
  * ```
  *
+ * (Note that this license is the same as item three of SDL's zlib license,
+ * so it adds no new requirements on the user.)
+ *
  * If you would like a version of SDL without this code, you can build SDL
  * with SDL_HIDAPI_DISABLED defined to 1. You might want to do this for
  * example on iOS or tvOS to avoid a dependency on the CoreBluetooth