dm: part: Drop the common.h header

We should not include <common.h> in header files. Each C file should include
it if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>

include/part.h

@@ -8,7 +8,6 @@
 #define _PART_H
 
 #include <ide.h>
-#include <common.h>
 
 struct blk_desc {
 	int		if_type;	/* type of the interface */