libgpiod: bump version to v0.3

Add host-pkgconf to dependencies as we now use PKG_CHECK_MODULES in
configure.ac.

Changelog for v0.3:

New features:
- gpiomon can now watch multiple lines at the same time and supports custom
  output formats which can be specified using the --format argument
- testing framework can now test external programs: test cases for gpio-tools
  have been added

Improvements:
- improve error messages
- improve README examples
- configure script improvements

Bug fixes:
- use correct UAPI flags when requesting line events

Also includes bug fixes from v0.2.1:

Bug fixes:
- capitalize 'GPIO' in error messages in gpioset, gpioget & gpiomon
- tweak the error message on invalid arguments in gpiofind
- don't ignore superfluous arguments and fix the displayed name for falling
  edge events in gpiomon

Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libgpiod/libgpiod.hash

@@ -1,2 +1,2 @@
 # Locally computed
-sha256 de1947f3cb2cc4174364af430309fe6238976658575655bdbd76c60cffa7df92 libgpiod-v0.2.tar.gz
+sha256 24794006c14194e269b944f2cca0e85e481f1538be3c143479c4c6691bf25add libgpiod-v0.3.tar.gz

package/libgpiod/libgpiod.mk

@@ -4,11 +4,13 @@
 #
 ################################################################################
 
-LIBGPIOD_VERSION = v0.2
+LIBGPIOD_VERSION = v0.3
 LIBGPIOD_SITE = $(call github,brgl,libgpiod,$(LIBGPIOD_VERSION))
 LIBGPIOD_LICENSE = LGPL-2.1+
 LIBGPIOD_LICENSE_FILES = COPYING
 
+LIBGPIOD_DEPENDENCIES = host-pkgconf
+
 # Needed for autoreconf to work properly
 define LIBGPIOD_FIXUP_M4_DIR
         mkdir $(@D)/m4