swig: add visible Config.in option for host variant

The patch adds the package/swig/Config.in.host file and adds this path
to the package/Config.in.host file.

Signed-off-by: Matt Flax <flatmax@flatmax.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/Config.in.host

@@ -57,6 +57,7 @@ menu "Host utilities"
 	source "package/sam-ba/Config.in.host"
 	source "package/squashfs/Config.in.host"
 	source "package/sunxi-tools/Config.in.host"
+	source "package/swig/Config.in.host"
 	source "package/tegrarcm/Config.in.host"
 	source "package/ti-cgt-pru/Config.in.host"
 	source "package/uboot-tools/Config.in.host"

package/swig/Config.in.host

@@ -0,0 +1,8 @@
+config BR2_PACKAGE_HOST_SWIG
+	bool "host swig"
+	help
+	  swig is a software development tool that connects programs
+	  written in C and C++ with a variety of high-level
+	  programming languages.
+
+	  http://www.swig.org/