package/libxml2: bump version to 2.12.1

Updated license hash due to upstream commit
https://github.com/GNOME/libxml2/commit/4a513d5667d7690998f01b9048c56c4f1f50f6a5

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libxml2/libxml2.hash

@@ -1,4 +1,4 @@
-# From https://download.gnome.org/sources/libxml2/2.11/libxml2-2.11.6.sha256sum
-sha256  c90eee7506764abbe07bb616b82da452529609815aefef423d66ef080eb0c300  libxml2-2.11.6.tar.xz
+# From https://download.gnome.org/sources/libxml2/2.12/libxml2-2.12.1.sha256sum
+sha256  8982b9ccdf7f456e30d8f7012d50858c6623e495333b6191def455c7e95427eb  libxml2-2.12.1.tar.xz
 # License files, locally calculated
-sha256  c5c63674f8a83c4d2e385d96d1c670a03cb871ba2927755467017317878574bd  Copyright
+sha256  7fb0a66f3989f9bd5c7e5438a3de02cd4a7a47dde0aea2f7ea2ba2ff454ee6a4  Copyright

package/libxml2/libxml2.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-LIBXML2_VERSION_MAJOR = 2.11
-LIBXML2_VERSION = $(LIBXML2_VERSION_MAJOR).6
+LIBXML2_VERSION_MAJOR = 2.12
+LIBXML2_VERSION = $(LIBXML2_VERSION_MAJOR).1
 LIBXML2_SOURCE = libxml2-$(LIBXML2_VERSION).tar.xz
 LIBXML2_SITE = \
 	https://download.gnome.org/sources/libxml2/$(LIBXML2_VERSION_MAJOR)