Fix longstanding "error: storage size of '__mod_dmi_device_table' isn't known"

gcc 3.4.6 doesn't like MODULE_DEVICE_TABLE(dmi, x) expansion enough to
error out. Shut it up in a most simple way.

Signed-off-by: Alexey Dobriyan <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

include/linux/mod_devicetable.h

···
 	struct dmi_strmatch matches[4];
 	void *driver_data;
 };
+/*
+ * struct dmi_device_id appears during expansion of
+ * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
+ * but this is enough for gcc 3.4.6 to error out:
+ *	error: storage size of '__mod_dmi_device_table' isn't known
+ */
+#define dmi_device_id dmi_system_id
 #endif
 
 #define DMI_MATCH(a, b)	{ a, b }