Fix Ethernet handling and dependencies for CH390 driver

variants/esp32s3/rak_wismesh_tap_v2/platformio.ini

@@ -41,6 +41,9 @@ lib_deps =
 
 [env:rak_wismesh_tap_v2-tft]
 extends = env:rak_wismesh_tap_v2
+; The MUI build overflows default_8MB.csv's 0x330000 app slots; use the MUI
+; layout (large app0 + small flasher slot) like the other has_mui 8MB boards.
+board_build.partitions = partition-table-8MB.csv
 
 build_flags =
   ${env:rak_wismesh_tap_v2.build_flags}