binman: Rename Entry.end_4gb

The property is named end_at_4gb so name the variable the same, to avoid
confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index 68f8d62..e506b55 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -722,7 +722,7 @@
             is_elf = self.GetDefaultFilename() == self.elf_fname
 
             symbols_base = self.symbols_base
-            if symbols_base is None and self.GetImage()._end_4gb:
+            if symbols_base is None and self.GetImage()._end_at_4gb:
                 symbols_base = 0
 
             elf.LookupAndWriteSymbols(self.elf_fname, self, section.GetImage(),
diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py
index f4f48c0..020fd57 100644
--- a/tools/binman/etype/section.py
+++ b/tools/binman/etype/section.py
@@ -165,7 +165,7 @@
         self._pad_byte = 0
         self._sort = False
         self._skip_at_start = None
-        self._end_4gb = False
+        self._end_at_4gb = False
         self._ignore_missing = False
         self._filename = None
         self.align_default = 0
@@ -187,9 +187,9 @@
         super().ReadNode()
         self._pad_byte = fdt_util.GetInt(self._node, 'pad-byte', 0)
         self._sort = fdt_util.GetBool(self._node, 'sort-by-offset')
-        self._end_4gb = fdt_util.GetBool(self._node, 'end-at-4gb')
+        self._end_at_4gb = fdt_util.GetBool(self._node, 'end-at-4gb')
         self._skip_at_start = fdt_util.GetInt(self._node, 'skip-at-start')
-        if self._end_4gb:
+        if self._end_at_4gb:
             if not self.size:
                 self.Raise("Section size must be provided when using end-at-4gb")
             if self._skip_at_start is not None: