ps3-flash-util: Fix --db-write-half option

The ps3-flash-util --db-write-half option should use
os_area_db_set_16(), to write a 16 bit value.  This
bug cause ps3-flash-util to use os_area_db_set_32(),
so the value was put in a 32 bit location.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
diff --git a/ps3-flash-util.c b/ps3-flash-util.c
index 8018952..480500d 100644
--- a/ps3-flash-util.c
+++ b/ps3-flash-util.c
@@ -471,7 +471,7 @@
 			break;
 		case 'H':
 			result = pickup_db_op_entry(&argv[optind - 2],
-				op_set_32, 3, &opts->db_op_list);
+				op_set_16, 3, &opts->db_op_list);
 			if (result) {
 				fprintf(stderr, "parse failed: %s\n\n",
 					argv[optind - 2]);