bn/asm/*x86_64*.pl: correct assembler requirement for ad*x.

crypto/bn/asm/rsaz-x86_64.pl

@@ -88,7 +88,7 @@ open OUT,"| $^X $xlate $flavour $output";
 
 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
 		=~ /GNU assembler version ([2-9]\.[0-9]+)/) {
-	$addx = ($1>=2.22);
+	$addx = ($1>=2.23);
 }
 
 if (!$addx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&

crypto/bn/asm/x86_64-mont.pl

@@ -55,7 +55,7 @@ open OUT,"| \"$^X\" $xlate $flavour $output";
 
 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
 		=~ /GNU assembler version ([2-9]\.[0-9]+)/) {
-	$addx = ($1>=2.22);
+	$addx = ($1>=2.23);
 }
 
 if (!$addx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&

crypto/bn/asm/x86_64-mont5.pl

@@ -33,7 +33,7 @@ open OUT,"| \"$^X\" $xlate $flavour $output";
 
 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
 		=~ /GNU assembler version ([2-9]\.[0-9]+)/) {
-	$addx = ($1>=2.22);
+	$addx = ($1>=2.23);
 }
 
 if (!$addx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&