targets/ramips-mt76x8: add device TP-Link RE200 V3

Signed-off-by: Richard Fröhning <misanthropos@gmx.de>
(cherry picked from commit 5a651742)

docs/user/supported_devices.rst

@@ -415,7 +415,7 @@ ramips-mt76x8
   - Archer C20 (v4, v5)
   - Archer C50 (v3)
   - Archer C50 (v4)
-  - RE200 (v2)
+  - RE200 (v2, v3)
   - RE305 (v1) [#device-class-tiny]
   - TL-MR3020 (v3)
   - TL-MR3420 (v5)

targets/ramips-mt76x8

@@ -60,6 +60,8 @@ device('tp-link-archer-c50-v4', 'tplink_archer-c50-v4', {
 
 device('tp-link-re200-v2', 'tplink_re200-v2')
 
+device('tp-link-re200-v3', 'tplink_re200-v3')
+
 device('tp-link-re305', 'tplink_re305-v1', {
 	class = 'tiny', -- Only 6M of usable Firmware space
 })