package/libmatroska: bump to version 1.6.2

Extract from ChangeLog:
 - In release 1.6.1 the version number in CMakeLists.txt wasn't
   updated, affecting the installed cmake and pkgconfig files. The
   version number has been bumped to 1.6.2 in all relevant files now.
 - "KaxBlockAddIDValue" class: this class is no longer marked as
   "mandatory" in order to coincide with the latest specification.

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

package/libmatroska/libmatroska.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  fec89cebd500807f7fd14b56c14733f11045fa2a21398ff6f6c5c0e3e01b4033  libmatroska-1.6.0.tar.xz
+sha256  bc4479aa8422ab07643df6a1fa5a19e4bed4badfd41ca77e081628620d1e1990  libmatroska-1.6.2.tar.xz
 sha256  dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551  LICENSE.LGPL

package/libmatroska/libmatroska.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBMATROSKA_VERSION = 1.6.0
+LIBMATROSKA_VERSION = 1.6.2
 LIBMATROSKA_SOURCE = libmatroska-$(LIBMATROSKA_VERSION).tar.xz
 LIBMATROSKA_SITE = http://dl.matroska.org/downloads/libmatroska
 LIBMATROSKA_INSTALL_STAGING = YES