drm/xe/pf: Fix documentation formatting

Current formatting of "The VF FLR Flow with GuC" only looks fine,
but it will not render properly when included in htmldocs due to:

  WARNING: Block quote ends without a blank line; unexpected unindent.
  CRITICAL: Missing matching underline for section title overline.

Fix that by adding proper indent and using list markup.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240828210809.1528-3-michal.wajdeczko@intel.com

drivers/gpu/drm/xe/xe_gt_sriov_pf_control.c

@@ -153,6 +153,8 @@ int xe_gt_sriov_pf_control_trigger_flr(struct xe_gt *gt, unsigned int vfid)
 /**
  * DOC: The VF FLR Flow with GuC
  *
+ * The VF FLR flow includes several steps::
+ *
  *	         PF                        GUC             PCI
  *	========================================================
  *	         |                          |               |
@@ -173,13 +175,13 @@ int xe_gt_sriov_pf_control_trigger_flr(struct xe_gt *gt, unsigned int vfid)
  *	        [ ]-- FINISH FLR --------> [ ]
  *	         |                          |
  *
- * Step 1: PCI HW generates interrupt to the GuC about VF FLR
- * Step 2: GuC FW sends G2H notification to the PF about VF FLR
- * Step 2a: on some platforms G2H is only received from root GuC
- * Step 3: PF sends H2G request to the GuC to start VF FLR sequence
- * Step 3a: on some platforms PF must send H2G to all other GuCs
- * Step 4: GuC FW performs VF FLR cleanups and notifies the PF when done
- * Step 5: PF performs VF FLR cleanups and notifies the GuC FW when finished
+ * * Step 1: PCI HW generates interrupt to the GuC about VF FLR
+ * * Step 2: GuC FW sends G2H notification to the PF about VF FLR
+ * * Step 2a: on some platforms G2H is only received from root GuC
+ * * Step 3: PF sends H2G request to the GuC to start VF FLR sequence
+ * * Step 3a: on some platforms PF must send H2G to all other GuCs
+ * * Step 4: GuC FW performs VF FLR cleanups and notifies the PF when done
+ * * Step 5: PF performs VF FLR cleanups and notifies the GuC FW when finished
  */
 
 static bool needs_dispatch_flr(struct xe_device *xe)