Do not depend on snapd on powerpc.

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (2.408.50) UNRELEASED; urgency=medium
+
+  * Actually, do not depend on snapd on powerpc as well.  Snaps are not
+    supported on this platform at all.  (LP: #1830823)
+
+ -- Łukasz 'sil2100' Zemczak <lukasz.zemczak@ubuntu.com>  Tue, 25 Jun 2019 22:54:10 +0200
+
 livecd-rootfs (2.408.49) xenial; urgency=medium
 
   * Add explicit dependency on python3-yaml, which is used in the code but

debian/control

@@ -32,7 +32,7 @@ Depends: ${misc:Depends},
          python3-yaml,
          qemu-utils,
          rsync,
-         snapd,
+         snapd [!powerpc],
          squashfs-tools (>= 1:3.3-1),
          ubuntu-image [!powerpc],
          vmdk-stream-converter [amd64 i386],