Merge version 1.170+rpi1 and 1.171 to produce 1.171+rpi1

diff --cc debian/changelog
index f3a73d74a5905678d3fd5164d4ea3bff61bda826,1ca6a21751220342f8e3854bedb60278ccd41139..7fcf8d5abd7d5d7e94be4d62305afd9d1470880c
--- 1/debian/changelog
--- 2/debian/changelog
+++ b/debian/changelog
@@@ -1,9 -1,9 +1,16 @@@
- base-installer (1.170+rpi1) buster-staging; urgency=medium
++base-installer (1.171+rpi1) buster-staging; urgency=medium
 +
 +  [changes brought forward from 1.148+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Wed, 30 Jul 2014 05:27:29 +0000]
 +  * Use raspbian-archive-keyring instead of debian-archive-keyring.
 +
-  -- Raspbian forward porter <root@raspbian.org>  Wed, 28 Jun 2017 22:44:24 +0000
++ -- Raspbian forward porter <root@raspbian.org>  Tue, 04 Jul 2017 18:54:27 +0000
++
+ base-installer (1.171) unstable; urgency=medium
+ 
+   [ Aurelien Jarno ]
+   * Drop check and tests for unsupported mips/mipsel/mips64el platforms.
+ 
+  -- Christian Perrier <bubulle@debian.org>  Wed, 28 Jun 2017 06:55:07 +0200
  
  base-installer (1.170) unstable; urgency=medium