boost: bump to version 1.68

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

package/boost/boost.hash

@@ -1,5 +1,5 @@
-# From http://www.boost.org/users/history/version_1_67_0.html
-sha256 2684c972994ee57fc5632e03bf044746f6eb45d4920c343937a465fd67a5adba  boost_1_67_0.tar.bz2
+# From http://www.boost.org/users/history/version_1_68_0.html
+sha256 7f6130bc3cf65f56a618888ce9d5ea704fa10b462be126ad053e80e553d6d8b7  boost_1_68_0.tar.bz2
 
 # Locally computed
 sha256 c9bff75738922193e67fa726fa225535870d2aa1059f91452c411736284ad566  LICENSE_1_0.txt

package/boost/boost.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-BOOST_VERSION = 1.67.0
+BOOST_VERSION = 1.68.0
 BOOST_SOURCE = boost_$(subst .,_,$(BOOST_VERSION)).tar.bz2
 BOOST_SITE = http://downloads.sourceforge.net/project/boost/boost/$(BOOST_VERSION)
 BOOST_INSTALL_STAGING = YES