ramips-mt7621: add support for Genexis Pulse EX400

Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit caf75dd9)

docs/user/supported_devices.rst

@@ -429,6 +429,10 @@ ramips-mt7621
   - DAP-X1860 (A1)
   - DIR-860L (B1)
 
+* Genexis
+
+  - Pulse EX400
+
 * GL.iNet
 
   - GL-MT1300

targets/ramips-mt7621

@@ -45,6 +45,14 @@ device('d-link-dap-x1860-a1', 'dlink_dap-x1860-a1')
 device('d-link-dir-860l-b1', 'dlink_dir-860l-b1')
 
 
+-- Genexis
+
+device('genexis-pulse-ex400', 'genexis_pulse-ex400', {
+	factory = false,
+	sysupgrade = '-sysupgrade',
+})
+
+
 -- GL.iNet
 
 device('gl.inet-gl-mt1300', 'glinet_gl-mt1300', {