Change FIOC_MMAP into file operation call

- Add mmap into file_operations and remove it from ioctl definitions.
- Add mm_map structure definitions to support future unmapping
- Modify all drivers to initialize the operations struct accordingly

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>

drivers/rc/lirc_dev.c

@@ -104,6 +104,7 @@ static const struct file_operations g_lirc_fops =
   NULL,        /* seek */
   lirc_ioctl,  /* ioctl */
   NULL,        /* truncate */
+  NULL,        /* mmap */
   lirc_poll    /* poll */
 #ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
   , NULL       /* unlink */