raw-format: add missing coroutine_fn annotations

Callers of coroutine_fn must be coroutine_fn themselves, or the call
must be within "if (qemu_in_coroutine())".  Apply coroutine_fn to
functions where this holds.

Reviewed-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220922084924.201610-24-pbonzini@redhat.com>
[kwolf: Fixed up coding style]
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block/raw-format.c

@@ -411,7 +411,8 @@ static void raw_lock_medium(BlockDriverState *bs, bool locked)
     bdrv_lock_medium(bs->file->bs, locked);
 }
 
-static int raw_co_ioctl(BlockDriverState *bs, unsigned long int req, void *buf)
+static int coroutine_fn raw_co_ioctl(BlockDriverState *bs,
+                                     unsigned long int req, void *buf)
 {
     BDRVRawState *s = bs->opaque;
     if (s->offset || s->has_size) {