libepoxy: bump to version 1.5.8

Update to libepoxy 1.5.8, which fixes a few regressions introduced in
the 1.5.7 release:

  https://github.com/anholt/libepoxy/releases/tag/1.5.8

Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/libepoxy/libepoxy.hash

@@ -1,5 +1,5 @@
-# From http://ftp.gnome.org/pub/gnome/sources/libepoxy/1.5/libepoxy-1.5.7.sha256sum
-sha256  9479cc0146ffb395fdecf9bd2a5930834fd0bce490cbcc4681ffd716bb3a0763  libepoxy-1.5.7.tar.xz
+# From http://ftp.gnome.org/pub/gnome/sources/libepoxy/1.5/libepoxy-1.5.8.sha256sum
+sha256  cf05e4901778c434aef68bb7dc01bea2bce15440c0cecb777fb446f04db6fe0d  libepoxy-1.5.8.tar.xz
 
 # Hashes for license files:
 sha256  8d5144666f9c4df9bbd69b8900086d5979259152a1060421cdcc0fb9061a1c12  COPYING

package/libepoxy/libepoxy.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 LIBEPOXY_VERSION_MAJOR = 1.5
-LIBEPOXY_VERSION = $(LIBEPOXY_VERSION_MAJOR).7
+LIBEPOXY_VERSION = $(LIBEPOXY_VERSION_MAJOR).8
 LIBEPOXY_SITE = http://ftp.gnome.org/pub/gnome/sources/libepoxy/$(LIBEPOXY_VERSION_MAJOR)
 LIBEPOXY_SOURCE = libepoxy-$(LIBEPOXY_VERSION).tar.xz
 LIBEPOXY_INSTALL_STAGING = YES