OpenULINK firmware: update firmware hex image

OpenULINK firmware: update firmware hex image

This image has been re-compiled with SDCC 3.3.0 and achieves slightly better
performance (50-100 Byte/s for STM32F103 flash write) due to new/improved
compiler optimizations.

Successfully tested with ULINK probe and STM32F103 (debug, erase and write
flash).

Change-Id: I4329aa42f50461fa3719fd63d0054d8e86982727
Signed-off-by: Martin Schmölzer <martin.schmoelzer@student.tuwien.ac.at>
Reviewed-on: http://openocd.zylin.com/1486
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>