mtd: nand: davinci: add header file for driver definitions

The definitions inside emif_defs.h concern davinci nand driver and
should be in it's header. So create header file for davinci nand
driver and move definitions from emif_defs.h and nand_defs.h to it.

Acked-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
[trini: Fixup more davinci breakage]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c b/arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c
index b91e948..19730ce 100644
--- a/arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c
+++ b/arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c
@@ -14,7 +14,7 @@
 #include <asm/arch/hardware.h>
 #include <asm/arch/davinci_misc.h>
 #include <asm/arch/ddr2_defs.h>
-#include <asm/arch/emif_defs.h>
+#include <asm/ti-common/davinci_nand.h>
 #include <asm/arch/pll_defs.h>
 
 void davinci_enable_uart0(void)