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/fat.c b/cmd/fat.c
index 28fca50..854fe27 100644
--- a/cmd/fat.c
+++ b/cmd/fat.c
@@ -64,7 +64,7 @@
 {
 	int dev, part;
 	struct blk_desc *dev_desc;
-	disk_partition_t info;
+	struct disk_partition info;
 
 	if (argc < 2) {
 		printf("usage: fatinfo <interface> [<dev[:part]>]\n");
@@ -101,7 +101,7 @@
 	unsigned long count;
 	long offset;
 	struct blk_desc *dev_desc = NULL;
-	disk_partition_t info;
+	struct disk_partition info;
 	int dev = 0;
 	int part = 1;
 	void *buf;