tools/autobuild: Build esp8266 OTA image with GENERIC_1M board.

Because the GENERIC board won't fit in the flash defined by esp8266_ota.ld.

Signed-off-by: Damien George <damien@micropython.org>

tools/autobuild/build-esp8266-latest.sh

@@ -58,4 +58,4 @@ fi
 do_build esp8266 GENERIC
 do_build esp8266-512k GENERIC_512K
 do_build esp8266-1m GENERIC_1M
-do_build_ota esp8266-ota GENERIC ota
+do_build_ota esp8266-ota GENERIC_1M ota