m68k/sun3/: possible cleanups

This patch contains the following possible cleanups:
- make the following needlessly global code static:
  - config.c: sun3_bootmem_alloc()
  - config.c: sun3_sched_init()
  - dvma.c: dvma_page()
  - idprom.c: struct Sun_Machines[]
  - mmu_emu.c: struct ctx_alloc[]
  - sun3dvma.c: iommu_use[]
  - sun3ints.c: led_pattern[]
- remove the unused sbus.c

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/m68k/sun3/idprom.c b/arch/m68k/sun3/idprom.c
index 6c5336d..c86ac37 100644
--- a/arch/m68k/sun3/idprom.c
+++ b/arch/m68k/sun3/idprom.c
@@ -25,7 +25,7 @@
  * of the Sparc CPU and have a meaningful IDPROM machtype value that we
  * know about.  See asm-sparc/machines.h for empirical constants.
  */
-struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = {
+static struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = {
 /* First, Sun3's */
     { .name = "Sun 3/160 Series",	.id_machtype = (SM_SUN3 | SM_3_160) },
     { .name = "Sun 3/50",		.id_machtype = (SM_SUN3 | SM_3_50) },