[x86] Enable DCN 1.0 Raven family (Closes #901349)

This enables the display engine for cards like Ryzen 2200G or 2400G

debian/changelog

@@ -1,5 +1,6 @@
 linux (4.17.2-1~exp2) UNRELEASED; urgency=medium
 
+  [ Ben Hutchings ]
   * [amd64,arm64,armhf] android: Build modules to support Anbox
     (Closes: #901492)
     - Enable building ashmem and binder as modules
@@ -9,6 +10,9 @@ linux (4.17.2-1~exp2) UNRELEASED; urgency=medium
     - Disable ANDROID_BINDER_IPC_32BIT
   * [mips*] Increase RELOCATION_TABLE_SIZE to 0x00140000 (fixes FTBFS)
 
+  [ Romain Perier ]
+  * [x86] Enable DCN 1.0 Raven family (Closes #901349)
+
  -- Ben Hutchings <ben@decadent.org.uk>  Fri, 22 Jun 2018 17:34:37 +0100
 
 linux (4.17.2-1~exp1) experimental; urgency=medium

debian/config/kernelarch-x86/config

@@ -511,6 +511,11 @@ CONFIG_DRM_AMD_ACP=y
 ##
 CONFIG_HSA_AMD=m
 
+##
+## file: drivers/gpu/drm/amd/display/Kconfig
+##
+CONFIG_DRM_AMD_DC_DCN1_0=y
+
 ##
 ## file: drivers/gpu/drm/ast/Kconfig
 ##