package/owfs: add optional libftdi dependency

ftdi support has been added in version 3.1p2 and
https://github.com/owfs/owfs/commit/2982df8ca648bd9cec4d820151046b044ef504e0

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/owfs/owfs.mk

@@ -42,6 +42,20 @@ else
 OWFS_CONF_OPTS += --disable-owfs
 endif
 
+ifeq ($(BR2_PACKAGE_LIBFTDI1),y)
+OWFS_CONF_OPTS += \
+	--enable-ftdi \
+	--with-libftdi-config=$(STAGING_DIR)/usr/bin/libftdi1-config
+OWFS_DEPENDENCIES += libftdi1
+else ifeq ($(BR2_PACKAGE_LIBFTDI),y)
+OWFS_CONF_OPTS += \
+	--enable-ftdi \
+	--with-libftdi-config=$(STAGING_DIR)/usr/bin/libftdi-config
+OWFS_DEPENDENCIES += libftdi
+else
+OWFS_CONF_OPTS += --disable-ftdi
+endif
+
 ifeq ($(BR2_PACKAGE_LIBUSB),y)
 OWFS_CONF_OPTS += --enable-usb
 OWFS_DEPENDENCIES += libusb