* new board (eb_cpux9k2)
* support for EB+CPUx9K2 board by BuS Elektronik GmbH & Co. KG
* select via make eb_cpux9k2_config
* this also demonstrates, how to use boards with AT91RM9200 cpu
in at91 arch tree
Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>