Rename boot_info

struct boot_info is named that for historical reasons, and isn't
particularly meaningful.  Essentially it contains all the information -
in "live" form from a single dts or dtb file.  As we move towards support
for dynamic dt overlays, that name will become increasingly bad.

So, in preparation, rename it to dt_info.  At the same time rename the
'the_boot_info' global to 'parser_output' since that's its actual purpose.
Unfortunately we do need the global unless we switch to bison's re-entrant
parser extensions, which would introduce its own complications.

Signed-off-by: David Gibson <[email protected]>
diff --git a/fstree.c b/fstree.c
index e67fd9f..ae7d06c 100644
--- a/fstree.c
+++ b/fstree.c
@@ -79,13 +79,12 @@
 	return tree;
 }
 
-struct boot_info *dt_from_fs(const char *dirname)
+struct dt_info *dt_from_fs(const char *dirname)
 {
 	struct node *tree;
 
 	tree = read_fstree(dirname);
 	tree = name_node(tree, "");
 
-	return build_boot_info(DTSF_V1, NULL, tree, guess_boot_cpuid(tree));
+	return build_dt_info(DTSF_V1, NULL, tree, guess_boot_cpuid(tree));
 }
-