realme: also add codename RMX3242

This change clears any confusion which could happen
since the initial creation of markdown for RMX3241.

Change-Id: I2f91d0e19749fc5da0a9cdbc3ad35b466682e3bb
diff --git a/_realme/realme85g_narzo305g.markdown b/_realme/realme85g_narzo305g.markdown
index c9ab086..6e09216 100644
--- a/_realme/realme85g_narzo305g.markdown
+++ b/_realme/realme85g_narzo305g.markdown
@@ -1,7 +1,7 @@
 ---
 layout: device
 title:  "Realme 8 5G / Narzo 30 5G"
-codename: RMX3241
+codename: RMX3241/RMX3242
 downloadfolder: RMX3241
 supportstatus: Current
 maintainer: crazo7924