package/libgphoto2: bump to version 2.5.27

https://github.com/gphoto/libgphoto2/releases/tag/v2.5.27

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/libgphoto2/libgphoto2.hash

@@ -1,6 +1,3 @@
-# https://sourceforge.net/projects/gphoto/files/libgphoto/2.5.26/
-sha1  38373ef7f76e90492ffca309094487fb1474f3fe  libgphoto2-2.5.26.tar.bz2
-
 # Locally calculated hash
-sha256  7740fea3cbb78489071cdfec06c07fab528e69e27ac82734eae6a73eaeeabcd4  libgphoto2-2.5.26.tar.bz2
+sha256  a7253bd18c6ef65352150ac36a668f883a5ad2634eb6455b3ca9aa6ac98d0073  libgphoto2-2.5.27.tar.xz
 sha256  ebc385a0b1d477be5177ed6d9129557aa59a3ad0f26ebe7dd97ee942a0fb68ee  COPYING

package/libgphoto2/libgphoto2.mk

@@ -4,11 +4,9 @@
 #
 ################################################################################
 
-LIBGPHOTO2_VERSION = 2.5.26
-LIBGPHOTO2_SOURCE = libgphoto2-$(LIBGPHOTO2_VERSION).tar.bz2
-# Project is maintained on github but github tarball doesn't have
-# configure, so use tarballs from SourceForge
-LIBGPHOTO2_SITE = https://downloads.sourceforge.net/project/gphoto/libgphoto/$(LIBGPHOTO2_VERSION)
+LIBGPHOTO2_VERSION = 2.5.27
+LIBGPHOTO2_SOURCE = libgphoto2-$(LIBGPHOTO2_VERSION).tar.xz
+LIBGPHOTO2_SITE = https://github.com/gphoto/libgphoto2/releases/download/v$(LIBGPHOTO2_VERSION)
 LIBGPHOTO2_LICENSE = LGPL-2.1+, GPL-2.0 (adc65), GPL-2.0+ (some camlibs), \
 	LGPL-2.0 (sipix), LGPL-3.0+ (pentax), BSD-3-Clause (ax203/tinyjpeg)
 # There is a single license file for the LGPL-2.1, no license files