New low-end chips have only 2k of RAM, workarea size adjusted
Change-Id: Ibfccd73fef9e6dabffc87d901736c5626ce411fe
Signed-off-by: Ilia Motornyi <elijah.mot@gmail.com>
Reviewed-on: http://openocd.zylin.com/4308
Tested-by: jenkins
Reviewed-by: Karl Palsson <karlp@tweak.net.au>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>