part: Drop disk_partition_t typedef

We should not be using typedefs and these make it harder to use
forward declarations (to reduce header file inclusions). Drop the typedef.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/reiser.c b/cmd/reiser.c
index 598fab4..28e8277 100644
--- a/cmd/reiser.c
+++ b/cmd/reiser.c
@@ -35,7 +35,7 @@
 	char *filename = "/";
 	int dev, part;
 	struct blk_desc *dev_desc = NULL;
-	disk_partition_t info;
+	struct disk_partition info;
 
 	if (argc < 3)
 		return CMD_RET_USAGE;
@@ -81,7 +81,7 @@
 	char *filename = NULL;
 	int dev, part;
 	ulong addr = 0, filelen;
-	disk_partition_t info;
+	struct disk_partition info;
 	struct blk_desc *dev_desc = NULL;
 	unsigned long count;
 	char *addr_str;