ramips-mt76x8: add TP-Link RE200 v4 (#3297)

Signed-off-by: Richard Fröhning <misanthropos@gmx.de>
(cherry picked from commit bdf74d81)

docs/user/supported_devices.rst

@@ -500,7 +500,7 @@ ramips-mt76x8
 
   - Archer C20 (v4, v5)
   - Archer C50 (v3, v4)
-  - RE200 (v2, v3)
+  - RE200 (v2, v3, v4)
   - TL-MR3020 (v3)
   - TL-MR3420 (v5)
   - TL-MR6400 (v5)

targets/ramips-mt76x8

@@ -62,6 +62,8 @@ device('tp-link-re200-v2', 'tplink_re200-v2')
 
 device('tp-link-re200-v3', 'tplink_re200-v3')
 
+device('tp-link-re200-v4', 'tplink_re200-v4')
+
 device('tp-link-tl-mr3020-v3', 'tplink_tl-mr3020-v3', {
 	factory = false,
 	extra_images = {