package/openocd: fix build with libgpiod2

openocd is not compatible with libgpiod2 resulting in the following
build failure since the addition of libgpiod2 in commit
57391fad2e619395340b81957ddceab1b1df2e20:

src/jtag/drivers/linuxgpiod.c: In function 'helper_get_line':
src/jtag/drivers/linuxgpiod.c:283:19: error: 'GPIOD_LINE_REQUEST_DIRECTION_INPUT' undeclared (first use in this function); did you mean 'GPIOD_LINE_DIRECTION_INPUT'?
  283 |         int dir = GPIOD_LINE_REQUEST_DIRECTION_INPUT, flags = 0, val = 0, retval;
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                   GPIOD_LINE_DIRECTION_INPUT

Fixes: 57391fad2e619395340b81957ddceab1b1df2e20
 - http://autobuild.buildroot.org/results/7195e8b76350f26ab3b963702d88b254512e6928

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

package/openocd/openocd.mk

@@ -56,8 +56,14 @@ OPENOCD_DEPENDENCIES = \
 	$(if $(BR2_PACKAGE_LIBUSB),libusb) \
 	$(if $(BR2_PACKAGE_LIBUSB_COMPAT),libusb-compat) \
 	$(if $(BR2_PACKAGE_LIBHID),libhid) \
-	$(if $(BR2_PACKAGE_HIDAPI),hidapi) \
-	$(if $(BR2_PACKAGE_LIBGPIOD),libgpiod)
+	$(if $(BR2_PACKAGE_HIDAPI),hidapi)
+
+ifeq ($(BR2_PACKAGE_LIBGPIOD),y)
+OPENOCD_DEPENDENCIES += libgpiod
+OPENOCD_CONF_OPTS += --enable-linuxgpiod
+else
+OPENOCD_CONF_OPTS += --disable-linuxgpiod
+endif
 
 # Adapters
 OPENOCD_CONF_OPTS += \