bison: bump to version 3.0

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/bison/bison.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-BISON_VERSION = 2.7.1
+BISON_VERSION = 3.0
 BISON_SOURCE = bison-$(BISON_VERSION).tar.xz
 BISON_SITE = $(BR2_GNU_MIRROR)/bison
 BISON_LICENSE = GPLv3+