binman: Support writing symbols for ucode etypes

Allow symbol writing in these cases so that U-Boot can find the position
and size of U-Boot at runtime.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/tools/binman/etype/u_boot_spl_with_ucode_ptr.py b/tools/binman/etype/u_boot_spl_with_ucode_ptr.py
index 72739a5..18b99b0 100644
--- a/tools/binman/etype/u_boot_spl_with_ucode_ptr.py
+++ b/tools/binman/etype/u_boot_spl_with_ucode_ptr.py
@@ -18,7 +18,7 @@
     process.
     """
     def __init__(self, section, etype, node):
-        super().__init__(section, etype, node)
+        super().__init__(section, etype, node, auto_write_symbols=True)
         self.elf_fname = 'spl/u-boot-spl'
 
     def GetDefaultFilename(self):
diff --git a/tools/binman/etype/u_boot_tpl_with_ucode_ptr.py b/tools/binman/etype/u_boot_tpl_with_ucode_ptr.py
index 86f9578..f8cc220 100644
--- a/tools/binman/etype/u_boot_tpl_with_ucode_ptr.py
+++ b/tools/binman/etype/u_boot_tpl_with_ucode_ptr.py
@@ -20,7 +20,7 @@
     process.
     """
     def __init__(self, section, etype, node):
-        super().__init__(section, etype, node)
+        super().__init__(section, etype, node, auto_write_symbols=True)
         self.elf_fname = 'tpl/u-boot-tpl'
 
     def GetDefaultFilename(self):
diff --git a/tools/binman/etype/u_boot_with_ucode_ptr.py b/tools/binman/etype/u_boot_with_ucode_ptr.py
index 41731fd..aab27ac 100644
--- a/tools/binman/etype/u_boot_with_ucode_ptr.py
+++ b/tools/binman/etype/u_boot_with_ucode_ptr.py
@@ -28,8 +28,8 @@
     microcode, to allow early x86 boot code to find it without doing anything
     complicated. Otherwise it is the same as the u-boot entry.
     """
-    def __init__(self, section, etype, node):
-        super().__init__(section, etype, node)
+    def __init__(self, section, etype, node, auto_write_symbols=False):
+        super().__init__(section, etype, node, auto_write_symbols)
         self.elf_fname = 'u-boot'
         self.target_offset = None