[ARM] pxa: explicit #include <mach/dma.h> in various drivers

Where 'pxa_dma_desc' and 'pxa_{request,free}_dma' are referenced.
Signed-off-by: NEric Miao <eric.miao@marvell.com>

drivers/mtd/nand/pxa3xx_nand.c

@@ -20,8 +20,8 @@
 #include <linux/mtd/partitions.h>
 #include <linux/io.h>
 #include <linux/irq.h>
-#include <asm/dma.h>
 
+#include <mach/dma.h>
 #include <mach/pxa-regs.h>
 #include <mach/pxa3xx_nand.h>
 

drivers/net/smc911x.h

@@ -200,6 +200,9 @@ static inline void SMC_outsl(struct smc911x_local *lp, int reg,
 
 
 #ifdef SMC_USE_PXA_DMA
+
+#include <mach/dma.h>
+
 /*
  * Define the request and free functions
  * These are unfortunately architecture specific as no generic allocation

sound/arm/pxa2xx-pcm.h

@@ -9,7 +9,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#include <asm/dma.h>
+#include <mach/dma.h>
 
 struct pxa2xx_runtime_data {
 	int dma_ch;