cups: move localstatedir from /usr/var to /var

Prior to commit f64a1b850f ("cups:
convert to autotargets"), cups was explicitely configured to
put its modifiable single-machine data under /var.  After that
commit, the --localstatedir was not specified, so it remained at
it's default value, "PREFIX/var" - making cups use "/usr/var".

Using /var to store state files seems preferable to /usr/var,
as /usr might be read-only on some systems.  This patch
re-introduces the --localstatedir specification to build cups
to use /var.

Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/cups/cups.mk

@@ -17,7 +17,8 @@ CUPS_CONF_OPT = --without-perl \
 		--without-php \
 		--disable-gnutls \
 		--disable-gssapi \
-		--libdir=/usr/lib
+		--libdir=/usr/lib \
+		--localstatedir=/var
 CUPS_CONFIG_SCRIPTS = cups-config
 
 CUPS_DEPENDENCIES = $(if $(BR2_PACKAGE_ZLIB),zlib) \