binman: Fix spelling of nodes in code comments

Replace notes with nodes in code comments and docstrings.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/etype/fit.py b/tools/binman/etype/fit.py
index cd29435..822de79 100644
--- a/tools/binman/etype/fit.py
+++ b/tools/binman/etype/fit.py
@@ -823,7 +823,7 @@
         self.mkimage = self.AddBintool(btools, 'mkimage')
 
     def CheckMissing(self, missing_list):
-        # We must use our private entry list for this since generator notes
+        # We must use our private entry list for this since generator nodes
         # which are removed from self._entries will otherwise not show up as
         # missing
         for entry in self._priv_entries.values():
diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py
index 57b91ff..8bf5aa4 100644
--- a/tools/binman/etype/section.py
+++ b/tools/binman/etype/section.py
@@ -172,7 +172,7 @@
     def IsSpecialSubnode(self, node):
         """Check if a node is a special one used by the section itself
 
-        Some notes are used for hashing / signatures and do not add entries to
+        Some nodes are used for hashing / signatures and do not add entries to
         the actual section.
 
         Returns:
diff --git a/tools/binman/state.py b/tools/binman/state.py
index 56e5bf8..3356319 100644
--- a/tools/binman/state.py
+++ b/tools/binman/state.py
@@ -306,7 +306,7 @@
     """Yield all the nodes that need to be updated in all device trees
 
     The property referenced by this node is added to any device trees which
-    have the given node. Due to removable of unwanted notes, SPL and TPL may
+    have the given node. Due to removable of unwanted nodes, SPL and TPL may
     not have this node.
 
     Args: