util/kconfig: Uprev to Linux 6.5's kconfig

TEST=`util/abuild/abuild -C` output (config.h and config.build) remains
the same

Change-Id: If717d064d87b0045f276a4ee963db0a62230f5d8
Signed-off-by: Patrick Georgi <patrick@coreboot.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79182
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>

util/kconfig/streamline_config.pl

@@ -317,7 +317,7 @@ foreach my $makefile (@makefiles) {
 	$_ = convert_vars($_, %make_vars);
 
 	# collect objects after obj-$(CONFIG_FOO_BAR)
-	if (/obj-\$\((CONFIG_[^\)]*)\)\s*[+:]?=\s*(.*)/) {
+	if (/obj-\$[({](CONFIG_[^})]*)[)}]\s*[+:]?=\s*(.*)/) {
 	    $var = $1;
 	    $objs = $2;