Increase workareasize when it is know we have a larger device.
Change-Id: Ieaee92e7cd25cc201989f14de122349698871412
Signed-off-by: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Reviewed-on: http://openocd.zylin.com/3378
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>