mpc83xx: Fix the align bug of SDMA buffer

According to the latest user manual, the SDMA temporary
buffer base address must be 4KB aligned.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/drivers/qe/qe.c b/drivers/qe/qe.c
index 5f20962..0f5232a 100644
--- a/drivers/qe/qe.c
+++ b/drivers/qe/qe.c
@@ -98,7 +98,7 @@
 	out_be32(&p->sdaqmr, 0);
 
 	/* Allocate 2KB temporary buffer for sdma */
-	sdma_buffer_base = qe_muram_alloc(2048, 64);
+	sdma_buffer_base = qe_muram_alloc(2048, 4096);
 	out_be32(&p->sdwbcr, sdma_buffer_base & QE_SDEBCR_BA_MASK);
 
 	/* Clear sdma status */