Bump buildroot to 2019.02

bsp/buildroot/package/cups/cups.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-CUPS_VERSION = 2.2.5
+CUPS_VERSION = 2.2.7
 CUPS_SOURCE = cups-$(CUPS_VERSION)-source.tar.gz
 CUPS_SITE = https://github.com/apple/cups/releases/download/v$(CUPS_VERSION)
 CUPS_LICENSE = GPL-2.0, LGPL-2.0
@@ -24,6 +24,7 @@ CUPS_CONF_OPTS = \
 	--without-java \
 	--without-php \
 	--disable-gssapi \
+	--disable-pam \
 	--libdir=/usr/lib
 CUPS_CONFIG_SCRIPTS = cups-config
 CUPS_DEPENDENCIES = \