package/exfat(-utils): change license to GPL-2.0+

The license is specified in https://github.com/relan/exfat/blob/master/COPYING and indicates GPL-2.0+
The license changed from from GPL-3.0+ to GPL-2.0+ in 2013 but was never updated in buildroot.

https://github.com/relan/exfat/commit/48573fff5d070863e3279769e8a95d5c15a5c77d

Signed-off-by: Pieter Ronsijn <pieterronsijn@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/exfat-utils/exfat-utils.mk

@@ -6,7 +6,7 @@
 
 EXFAT_UTILS_VERSION = 1.3.0
 EXFAT_UTILS_SITE = https://github.com/relan/exfat/releases/download/v$(EXFAT_UTILS_VERSION)
-EXFAT_UTILS_LICENSE = GPL-3.0+
+EXFAT_UTILS_LICENSE = GPL-2.0+
 EXFAT_UTILS_LICENSE_FILES = COPYING
 
 EXFAT_UTILS_CONF_OPTS += --exec-prefix=/

package/exfat/exfat.mk

@@ -8,7 +8,7 @@ EXFAT_VERSION = 1.3.0
 EXFAT_SITE = https://github.com/relan/exfat/releases/download/v$(EXFAT_VERSION)
 EXFAT_SOURCE = fuse-exfat-$(EXFAT_VERSION).tar.gz
 EXFAT_DEPENDENCIES = libfuse host-pkgconf
-EXFAT_LICENSE = GPL-3.0+
+EXFAT_LICENSE = GPL-2.0+
 EXFAT_LICENSE_FILES = COPYING
 EXFAT_CFLAGS = $(TARGET_CFLAGS) -std=c99