This patch fixes ea20 after commit 6d8962e8
where $(obj)lib$(BOARD).a was changed to $(obj)lib$(BOARD).o in almost all the
Makefiles except ea20, probably due to merge path of the changes in 2010.12.

Signed-off-by: Ben <Gardiner&lt;bengardiner@nanometrics.ca>
CC: Sebastien Carlier <sebastien.carlier@gmail.com>
Acked-by : Stefano Babic <sbabic@denx.de>