debian: Correct copyright information

A bunch of newlib math code was needed for the Atmel ATmega 2560 as
avr libc is missing many required functions. I also mis-licensed
example/neopixel.py, which can get fixed in a later 'upstream'
release.

Signed-off-by: Keith Packard <keithp@keithp.com>

debian/copyright

@@ -4,8 +4,52 @@ Source: https://keithp.com/
 
 Files: *
 Copyright: 2018-2019 Keith Packard
+License: GPL-3+
+
+Files: examples/neopixel.py
+Copyright: 2019 Keith Packard
 License: GPL-2+
 
+Files:	ports/mega/sf_asinh.c
+	ports/mega/erf_gamma.c
+	ports/mega/ef_acosh.c
+	ports/mega/kf_sin.c
+	ports/mega/kf_cos.c
+	ports/mega/ef_remainder.c
+	ports/mega/sf_log1p.c
+	ports/mega/sf_erf.c
+	ports/mega/wf_tgamma.c
+	ports/mega/fdlibm.h
+	ports/mega/erf_lgamma.c
+	ports/mega/ef_atanh.c
+Copyright: 1993 Sun Microsystems, Inc.  All rights reserved.
+License: SunPro
+
+Files:	ports/mega/math_config.h
+	ports/mega/sf_exp.c
+	ports/mega/sf_exp2.c
+	ports/mega/sf_log2.c
+	ports/mega/sf_log2_data.c
+Copyright: 2017-2018 Arm Ltd.  All rights reserved.
+License: BSD-3-Clause
+
+License: GPL-3+
+ This package is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+ .
+ This package is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>
+ .
+ On Debian systems, the complete text of the GNU General
+ Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".
+
 License: GPL-2+
  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
@@ -23,3 +67,33 @@ License: GPL-2+
  .
  On Debian systems, the complete text of the GNU General Public License
  version 2 can be found in `/usr/share/common-licenses/GPL-2'.
+
+License: SunPro
+  Developed at SunPro, a Sun Microsystems, Inc. business.
+  Permission to use, copy, modify, and distribute this
+  software is freely granted, provided that this notice
+  is preserved.
+
+License: BSD-3-Clause
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+ 2. 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.
+ 3. The name of the company may not be used to endorse or promote
+    products derived from this software without specific prior written
+    permission.
+ .
+ THIS SOFTWARE IS PROVIDED BY ARM LTD ``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 ARM LTD 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. */