davinci: move i2c driver to drivers/i2c

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/cpu/arm926ejs/davinci/Makefile b/cpu/arm926ejs/davinci/Makefile
index 53f7742..ed24e65 100644
--- a/cpu/arm926ejs/davinci/Makefile
+++ b/cpu/arm926ejs/davinci/Makefile
@@ -27,7 +27,7 @@
 
 LIB	= $(obj)lib$(SOC).a
 
-COBJS	= timer.o ether.o lxt972.o dp83848.o i2c.o
+COBJS	= timer.o ether.o lxt972.o dp83848.o
 SOBJS	= lowlevel_init.o reset.o
 
 SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)