powerpc/mpc83xx: sparse fixes

fdt.c:91:78: warning: Using plain integer as NULL pointer
fdt.c:103:78: warning: Using plain integer as NULL pointer
speed.c:55:11: warning: symbol 'corecnf_tab' was not declared. Should it be static?
speed.c:519:5: warning: symbol 'do_clocks' was not declared. Should it be static?
mpc8313erdb.c:73:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:74:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:75:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:76:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:79:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:80:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:81:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:82:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:85:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:86:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:87:17: warning: obsolete struct initializer, use C99 syntax
mpc8313erdb.c:88:17: warning: obsolete struct initializer, use C99 syntax

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/arch/powerpc/cpu/mpc83xx/fdt.c b/arch/powerpc/cpu/mpc83xx/fdt.c
index 028c8f0..1f54781 100644
--- a/arch/powerpc/cpu/mpc83xx/fdt.c
+++ b/arch/powerpc/cpu/mpc83xx/fdt.c
@@ -88,7 +88,8 @@
 				u32 tmp[] = { 32, 0x8, 33, 0x8, 34, 0x8 };
 
 				path = fdt_path_offset(blob, prop);
-				prop = fdt_getprop(blob, path, "interrupts", 0);
+				prop = fdt_getprop(blob, path, "interrupts",
+						   NULL);
 				if (prop)
 					fdt_setprop(blob, path, "interrupts",
 						    &tmp, sizeof(tmp));
@@ -100,7 +101,8 @@
 				u32 tmp[] = { 35, 0x8, 36, 0x8, 37, 0x8 };
 
 				path = fdt_path_offset(blob, prop);
-				prop = fdt_getprop(blob, path, "interrupts", 0);
+				prop = fdt_getprop(blob, path, "interrupts",
+						   NULL);
 				if (prop)
 					fdt_setprop(blob, path, "interrupts",
 						    &tmp, sizeof(tmp));