cmd: part: use MAX_SEARCH_PARTITIONS for part search

Use Macro instead of hard code.

Change-Id: I8a41a762bb16ca77816871b357ededdde0b1c875
Signed-off-by: Kever Yang <[email protected]>

Author: keveryang

cmd/part.c

@@ -86,7 +86,7 @@ static int do_part_list(int argc, char * const argv[])
 		char str[512] = { '\0', };
 		disk_partition_t info;
 
-		for (p = 1; p < 128; p++) {
+		for (p = 1; p < MAX_SEARCH_PARTITIONS; p++) {
 			char t[5];
 			int r = part_get_info(desc, p, &info);