staging/android: remove sync_fence_create_dma()

With the removal of struct sync_pt sync_fence_create_dma() now takes
the same arguments as sync_fence_create() so let's keep only
sync_fence_create().

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>