drm/i915/uc: Update drawing for firmware layout

Sphinx was rendering firmware layout as html table, but since
we want to add sizes relations switch to plain text graphics.

v2: also update text and do it before move (Daniele)

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190725141308.24660-2-michal.wajdeczko@intel.com
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index c2173d1..3e233f9 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -430,6 +430,12 @@
 GuC
 ===
 
+Firmware Layout
+-------------------
+
+.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
+   :doc: Firmware Layout
+
 GuC-specific firmware loader
 ----------------------------
 
@@ -445,12 +451,6 @@
 .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
    :internal:
 
-GuC Firmware Layout
--------------------
-
-.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
-   :doc: GuC Firmware Layout
-
 GuC Address Space
 -----------------