arch/arm/include/asm/sizes.h: cleanups

Merge several sizes.h in asm/arch subdirectories into a single
asm/sizes.h file.

Fixup usage of asm/arch/sizes.h in some files to use the merged file.

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/include/configs/omap730.h b/include/configs/omap730.h
index 04d5144..c7682a1 100644
--- a/include/configs/omap730.h
+++ b/include/configs/omap730.h
@@ -31,7 +31,7 @@
 #ifndef __INCLUDED_OMAP730_H
 #define __INCLUDED_OMAP730_H
 
-#include <asm/arch/sizes.h>
+#include <asm/sizes.h>
 
 /***************************************************************************
  * OMAP730 Configuration Registers