Don't populate the array consumer_rdesc_start on the stack but instead
make it static. Makes the object code smaller by 88 bytes.
Before:
   text	   data	    bss	    dec	    hex	filename
  59155	   9840	    448	  69443	  10f43	drivers/hid/hid-logitech-hidpp.o
After:
   text	   data	    bss	    dec	    hex	filename
  59003	   9904	    448	  69355	  10eeb	drivers/hid/hid-logitech-hidpp.o
(gcc version 8.3.0, amd64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
                                              u8 *_rdesc, unsigned int *rsize)
 {
        /* Note 0 terminated so we can use strnstr to search for this. */
-       const char consumer_rdesc_start[] = {
+       static const char consumer_rdesc_start[] = {
                0x05, 0x0C,     /* USAGE_PAGE (Consumer Devices)       */
                0x09, 0x01,     /* USAGE (Consumer Control)            */
                0xA1, 0x01,     /* COLLECTION (Application)            */