Merge version 20.1.8-1+rpi1 and 20.1.9-1 to produce 20.1.9-1+rpi1

diff --cc debian/changelog
index 2353704b023a1340a5ce28645abb1d696b67fb9c,38e0d1e21353bbff2e0d01c154c0170a7899bd71..c1c9becabb89d1718844926a8936c8b74f22ab9b
--- 1/debian/changelog
--- 2/debian/changelog
+++ b/debian/changelog
@@@ -1,10 -1,9 +1,17 @@@
- mesa (20.1.8-1+rpi1) bullseye-staging; urgency=medium
++mesa (20.1.9-1+rpi1) bullseye-staging; urgency=medium
 +
 +  [changes brought forward from 20.1.2-1+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Thu, 02 Jul 2020 00:56:02 +0000]
 +  * Don't build with valgrind on armhf, the old version in Raspbian
 +    is not compatible.
 +
-  -- Raspbian forward porter <root@raspbian.org>  Thu, 24 Sep 2020 15:14:14 +0000
++ -- Raspbian forward porter <root@raspbian.org>  Wed, 07 Oct 2020 19:52:05 +0000
++
+ mesa (20.1.9-1) unstable; urgency=medium
+ 
+   * New upstream release.
+   * control: Add libclang-cpp11-dev to build-depends. (Closes: #954849)
+ 
+  -- Timo Aaltonen <tjaalton@debian.org>  Thu, 01 Oct 2020 10:12:00 +0300
  
  mesa (20.1.8-1) unstable; urgency=medium
  

diff --cc debian/control
Simple merge