wavelan_cs arm fix

Even when all fields are unsigned char, struct still might have
alignment > 1.  Does so on arm, unless you explicitly say that
it's packed...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wavelan_cs.h

@@ -309,7 +309,7 @@ struct mmw_t
 #define	MMW_EXT_ANT_INTERNAL	0x00	/* Internal antenna */
 #define	MMW_EXT_ANT_EXTERNAL	0x03	/* External antenna */
 #define	MMW_EXT_ANT_IQ_TEST	0x1C	/* IQ test pattern (set to 0) */
-};
+} __attribute__((packed));
 
 /* Size for structure checking (if padding is correct) */
 #define	MMW_SIZE	37