Merge version 8-20180425-1+rpi1 and 8.1.0-1 to produce 8.1.0-1+rpi1

diff --cc debian/changelog
index de08a1e58df261ada15881a878e9e3d1d1455bb1,d7859c31c075cbb86f600242b4c6d2e8d339a28c..98cbb280e4ada52051b3042fda53768a6cffecf8
--- 1/debian/changelog
--- 2/debian/changelog
+++ b/debian/changelog
@@@ -1,9 -1,12 +1,19 @@@
- gcc-8 (8-20180425-1+rpi1) buster-staging; urgency=medium
++gcc-8 (8.1.0-1+rpi1) buster-staging; urgency=medium
 +
 +  [changes brought forward from 8-20180207-2+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Sat, 17 Feb 2018 00:20:23 +0000]
 +  * Don't pass -march=armv7+fp to compiler when building libatomic.
 +
-  -- Raspbian forward porter <root@raspbian.org>  Wed, 02 May 2018 08:29:29 +0000
++ -- Raspbian forward porter <root@raspbian.org>  Thu, 10 May 2018 16:19:49 +0000
++
+ gcc-8 (8.1.0-1) unstable; urgency=medium
+ 
+   * GCC 8.1.0 release.
+   * Stop providing the 8.x.y symlinks in gcc_lib_dir and incluce/c++.
+   * Configure powerpcspe with --enable-obsolete, will be gone with GCC 9.
+   * Build libmpx libraries when not building the common libs.
+   * Update NEWS files for GCC 8.1.
+ 
+  -- Matthias Klose <doko@debian.org>  Wed, 02 May 2018 11:43:46 +0200
  
  gcc-8 (8-20180425-1) unstable; urgency=medium