arm nomadik: add gpio support

Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/cpu/arm926ejs/nomadik/Makefile b/cpu/arm926ejs/nomadik/Makefile
index e3bd2ee..0fc9f2a 100644
--- a/cpu/arm926ejs/nomadik/Makefile
+++ b/cpu/arm926ejs/nomadik/Makefile
@@ -25,7 +25,7 @@
 
 LIB	= $(obj)lib$(SOC).a
 
-COBJS	= timer.o
+COBJS	= timer.o gpio.o
 SOBJS	= reset.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)