dmaengine i.MX SDMA: Fix firmware loading

When loading the microcode to the SDMA engine we have to use
the ram_code_start_addr found in the firmware image. The copy
in the sdma engine is not initialized correctly. This is broken
since:
5b28aa3 dmaengine i.MX SDMA: Allow to run without firmware

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index d5a5d4d..75df8b9 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1135,7 +1135,7 @@
 	/* download the RAM image for SDMA */
 	sdma_load_script(sdma, ram_code,
 			header->ram_code_size,
-			sdma->script_addrs->ram_code_start_addr);
+			addr->ram_code_start_addr);
 	clk_disable(sdma->clk);
 
 	sdma_add_scripts(sdma, addr);