[SPARC]: Use ARRAY_SIZE macro

Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove a
duplicate of ARRAY_SIZE which is never used anyways.

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 25e31d5..cccfc12 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -143,7 +143,7 @@
  * as several PROMs may be installed on the same physical board.
  */
 #define SN2L_INIT(name, map)	\
-  { name, map, sizeof(map)/sizeof(struct pcic_ca2irq) }
+  { name, map, ARRAY_SIZE(map) }
 
 static struct pcic_sn2list pcic_known_sysnames[] = {
 	SN2L_INIT("SUNW,JavaEngine1", pcic_i_je1a),	/* JE1, PROM 2.32 */