dt-bindings: display: add BOE 14" panel

Add bindings for the BOE NV140FHM-N49 14" 1920x1080 panel.

The panel is used by the pine64 Pinebook Pro.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Tobias Schramm <t.schramm@manjaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200109140742.GA12940@ravnborg.org

Documentation/devicetree/bindings/display/panel/panel-simple.yaml

@@ -35,6 +35,8 @@ properties:
       - ampire,am800480r3tmqwa1h
         # AUO B116XAK01 eDP TFT LCD panel
       - auo,b116xa01
+        # BOE NV140FHM-N49 14.0" FHD a-Si FT panel
+      - boe,nv140fhmn49
         # GiantPlus GPM940B0 3.0" QVGA TFT LCD panel
       - giantplus,gpm940b0
         # Sharp LS020B1DD01D 2.0" HQVGA TFT LCD panel