dma_free_noncoherent() and dma_free_coherent() are missing calls to
plat_unmap_dma_mem().  This patch adds them.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
        dma_addr_t dma_handle)
 {
+       plat_unmap_dma_mem(dma_handle);
        free_pages((unsigned long) vaddr, get_order(size));
 }
 
 {
        unsigned long addr = (unsigned long) vaddr;
 
+       plat_unmap_dma_mem(dma_handle);
+
        if (!plat_device_is_coherent(dev))
                addr = CAC_ADDR(addr);