kconfig: test for /boot/config-uname after /proc/config.gz in localconfig

Many distros put their config in /boot/config-`uname -r`, add a check
for that right after /proc/config.gz
Reported-by: Alan Jenkins <sourcejedi.lkml@googlemail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

scripts/kconfig/streamline_config.pl

@@ -53,6 +53,10 @@ my @searchconfigs = (
 	    "file" => "/proc/config.gz",
 	    "exec" => "zcat",
 	},
+	{
+	    "file" => "/boot/config-$uname",
+	    "exec" => "cat",
+	},
 	{
 	    "file" => "/boot/vmlinuz-$uname",
 	    "exec" => "scripts/extract-ikconfig",