eudev: add enable/disable hwdb option

This option enables/disables installation of the eudev hardware database,
which provides various extra properties for known devices.
Enabling this option adds ~5MB to the rootfs size.

The option is enabled by default in order to preserve old behavior.

[Peter: extend commit message]
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/eudev/Config.in

@@ -27,6 +27,12 @@ config BR2_PACKAGE_EUDEV_RULES_GEN
 	help
 	  Enable persistent rules generator
 
+config BR2_PACKAGE_EUDEV_ENABLE_HWDB
+	bool "enable hwdb installation"
+	default y
+	help
+	  Enables hardware database installation to /etc/udev/hwdb.d
+
 endif
 
 comment "eudev needs eudev /dev management"

package/eudev/eudev.mk

@@ -31,6 +31,12 @@ ifeq ($(BR2_PACKAGE_EUDEV_RULES_GEN),y)
 EUDEV_CONF_OPTS += --enable-rule_generator
 endif
 
+ifeq ($(BR2_PACKAGE_EUDEV_ENABLE_HWDB),y)
+EUDEV_CONF_OPTS += --enable-hwdb
+else
+EUDEV_CONF_OPTS += --disable-hwdb
+endif
+
 ifeq ($(BR2_PACKAGE_LIBGLIB2),y)
 EUDEV_CONF_OPTS += --enable-gudev
 EUDEV_DEPENDENCIES += libglib2