sparc32: Trivial removal of sun4c references in comments.

I left some around, like the ones in the openprom headers, since
we need to think about which pieces of those datastructures and
code we can completely toss now.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/include/asm/machines.h b/arch/sparc/include/asm/machines.h
index 597c478..fd6ddb0 100644
--- a/arch/sparc/include/asm/machines.h
+++ b/arch/sparc/include/asm/machines.h
@@ -19,7 +19,7 @@
  * ---------------
  *  7    4 3    0
  *
- * The ARCH field determines the architecture line (sun4, sun4c, etc).
+ * The ARCH field determines the architecture line (sun4m, etc).
  * The MACH field determines the machine make within that architecture.
  */