Allow linker script to consider section attributes

The linker script now allows you to assign a section with the same
attributes as in the source.
To do this, I've removed a check from AssignSectionAddressAndBankByName
that would never be triggered, due to that condition being checked
before. Shouldn't this and IsSectionSameTypeBankAndAttrs be condensed
into a single function?

test/asm/test.sh

@@ -20,4 +20,5 @@ for i in *.asm; do
 	fi
 done
 
+rm -f $o $gb $before $after
 exit $rc

test/asm/update-refs.sh

@@ -6,4 +6,5 @@ for i in *.asm; do
 	mv -f $fname ${i%.asm}.out
 done
 
+rm -f $fname
 exit 0