Redo of PR#5345. Fixed spelling and typographical errors found by CodeSpell.

Signed-off-by: Shaun Case <warmsocks@gmail.com>
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/scripts/config.py b/scripts/config.py
index 19b60e1..91e37ad 100755
--- a/scripts/config.py
+++ b/scripts/config.py
@@ -428,7 +428,7 @@
         value = setting.value
         if value is None:
             value = ''
-        # Normally the whitespace to separte the symbol name from the
+        # Normally the whitespace to separate the symbol name from the
         # value is part of middle, and there's no whitespace for a symbol
         # with no value. But if a symbol has been changed from having a
         # value to not having one, the whitespace is wrong, so fix it.