libxml2: bump to 2.9.7

Signed-off-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libxml2/libxml2.hash

@@ -1,4 +1,4 @@
 # Locally calculated after checking pgp signature
-sha256	4031c1ecee9ce7ba4f313e91ef6284164885cdb69937a123f6a83bb6a72dcd38	libxml2-2.9.5.tar.gz
+sha256	f63c5e7d30362ed28b38bfa1ac6313f9a80230720b7fb6c80575eeab3ff5900c	libxml2-2.9.7.tar.gz
 # License files, locally calculated
 sha256	c5c63674f8a83c4d2e385d96d1c670a03cb871ba2927755467017317878574bd	COPYING

package/libxml2/libxml2.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBXML2_VERSION = 2.9.5
+LIBXML2_VERSION = 2.9.7
 LIBXML2_SITE = ftp://xmlsoft.org/libxml2
 LIBXML2_INSTALL_STAGING = YES
 LIBXML2_LICENSE = MIT