scripts: get_abi.pl: call get_leave() a little late

The $what conversions need to replace some characters to avoid
breaking regex expressions found on some What:.

only after replacing them back, the script should get the
$leave devnode.

Fixes: ca8e055c ("scripts: get_abi.pl: add a graph to speedup the undefined algorithm")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/a21631f8a884f50a962beafdd800f27891348d95.1632411447.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

scripts/get_abi.pl

@@ -777,8 +777,6 @@ sub undefined_symbols {
 			# (this happens on a few IIO definitions)
 			$what =~ s,\s*\=.*$,,;
 
-			my $leave = get_leave($what);
-
 			# Escape all other symbols
 			$what =~ s/$escape_symbols/\\$1/g;
 			$what =~ s/\\\\/\\/g;
@@ -790,6 +788,7 @@ sub undefined_symbols {
 			# Special case: IIO ABI which a parenthesis.
 			$what =~ s/sqrt(.*)/sqrt\(.*\)/;
 
+			my $leave = get_leave($what);
 			my $added = 0;
 			foreach my $l (split /\|/, $leave) {
 				if (defined($leaf{$l})) {