sparc: Kill now spurious includes of sbus.h

In order to make this week I also had to add an include
of linux/dma-mapping.h to asm/pci_32.h because drivers/pci/pci.c
really depends upon getting this header somehow.

Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/include/asm/dma.h

@@ -91,8 +91,6 @@ extern int isa_dma_bridge_buggy;
 
 #ifdef CONFIG_SPARC32
 
-#include <asm/sbus.h>
-
 /* Routines for data transfer buffers. */
 BTFIXUPDEF_CALL(char *, mmu_lockarea, char *, unsigned long)
 BTFIXUPDEF_CALL(void,   mmu_unlockarea, char *, unsigned long)

arch/sparc/include/asm/pci_32.h

@@ -3,6 +3,8 @@
 
 #ifdef __KERNEL__
 
+#include <linux/dma-mapping.h>
+
 /* Can be used to override the logic in pci_scan_bus for skipping
  * already-configured bus numbers - to be used for buggy BIOSes
  * or architectures with incomplete PCI setup by the loader.