Envie: add wait_for_upload_port=true

This only applies when the flashed bootloader is >= 1.11

Author: facchinm

boards.txt

@@ -61,7 +61,7 @@ envie_m7.upload.pid=0x035b
 envie_m7.upload.address=0x08040000
 envie_m7.upload.interface=0
 envie_m7.upload.use_1200bps_touch=true
-envie_m7.upload.wait_for_upload_port=false
+envie_m7.upload.wait_for_upload_port=true
 envie_m7.upload.native_usb=true
 envie_m7.upload.maximum_size=786432
 envie_m7.upload.maximum_data_size=523624
@@ -101,7 +101,7 @@ envie_m4.upload.protocol=
 envie_m4.upload.address=0x08100000
 envie_m4.upload.interface=0
 envie_m4.upload.use_1200bps_touch=true
-envie_m4.upload.wait_for_upload_port=false
+envie_m4.upload.wait_for_upload_port=true
 envie_m4.upload.native_usb=true
 envie_m4.upload.maximum_size=1048576
 envie_m4.upload.maximum_data_size=294248