libostree: change license to LGPL-2.0+

The license is actually GNU LIBRARY GENERAL PUBLIC LICENSE

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libostree/libostree.mk

@@ -8,7 +8,7 @@ LIBOSTREE_VERSION = 2017.13
 LIBOSTREE_SOURCE = libostree-$(LIBOSTREE_VERSION).tar.xz
 LIBOSTREE_SITE = https://github.com/ostreedev/ostree/releases/download/v$(LIBOSTREE_VERSION)
 
-LIBOSTREE_LICENSE = GPL-2.0+
+LIBOSTREE_LICENSE = LGPL-2.0+
 LIBOSTREE_LICENSE_FILES = COPYING
 LIBOSTREE_DEPENDENCIES = e2fsprogs host-pkgconf libfuse libglib2 libgpgme xz
 LIBOSTREE_INSTALL_STAGING = YES