binman: Remove hard-coded file name for x86 flash-descriptor & intel-me

Now that we have added file names from Kconfig in x86 u-boot.dtsi,
update binman to avoid using hard-coded names.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

tools/binman/etype/intel_descriptor.py

@@ -37,9 +37,6 @@ class Entry_intel_descriptor(Entry_blob):
         Entry_blob.__init__(self, image, etype, node)
         self._regions = []
 
-    def GetDefaultFilename(self):
-        return 'descriptor.bin'
-
     def GetPositions(self):
         pos = self.data.find(FD_SIGNATURE)
         if pos == -1:

tools/binman/etype/intel_me.py

@@ -12,6 +12,3 @@ from blob import Entry_blob
 class Entry_intel_me(Entry_blob):
     def __init__(self, image, etype, node):
         Entry_blob.__init__(self, image, etype, node)
-
-    def GetDefaultFilename(self):
-        return 'me.bin'