If the CMD_INC_FILE is defined with file name without location, the
following error will happen.
In file included from plugins/foo/foo-nvme.h:17:0,
from plugins/foo/foo-nvme.c:4:
./define_cmd.h:12:34: fatal error: foo-nvme.h: No such file or directory
#include CMD_INCLUDE(CMD_INC_FILE)
^
Signed-off-by: Minwoo Im <minwoo.im@samsung.com>
File: foo-plugin.h
```c
#undef CMD_INC_FILE
-#define CMD_INC_FILE foo-plugin
+#define CMD_INC_FILE plugins/foo/foo-plugin
#if !defined(FOO) || defined(CMD_HEADER_MULTI_READ)
#define FOO