cmd: part: list all 128 GPT partitions

A GPT partition table typically has 128 entries. If a partition table
contains a partition 128 'part list' should be able to list it.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/include/part.h b/include/part.h
index b66b07a..b8d8e1f 100644
--- a/include/part.h
+++ b/include/part.h
@@ -50,7 +50,7 @@
 
 #define PART_NAME_LEN 32
 #define PART_TYPE_LEN 32
-#define MAX_SEARCH_PARTITIONS 64
+#define MAX_SEARCH_PARTITIONS 128
 
 #define PART_BOOTABLE			((int)BIT(0))
 #define PART_EFI_SYSTEM_PARTITION	((int)BIT(1))