package/libplist: Bump version to 1.12

Quoting http://cgit.sukimashita.com/libplist.git/tree/NEWS
"  * Fix parallel build for autotools"

Therefore removed MAKE1, tested with -j90

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libplist/libplist.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBPLIST_VERSION = 1.11
+LIBPLIST_VERSION = 1.12
 LIBPLIST_SITE = http://cgit.sukimashita.com/libplist.git/snapshot
 LIBPLIST_DEPENDENCIES = libxml2 host-pkgconf
 LIBPLIST_INSTALL_STAGING = YES
@@ -14,9 +14,6 @@ LIBPLIST_LICENSE_FILES = COPYING
 # Straight out of the git tree:
 LIBPLIST_AUTORECONF = YES
 
-# Does not build in parallel
-LIBPLIST_MAKE = $(MAKE1)
-
 # Disable building Python bindings, because it requires host-cython, which
 # is not packaged in Buildroot at all.
 LIBPLIST_CONF_OPTS = --without-cython