package/modsecurity2: disable pcre

Disable pcre to avoid the following build failure if pcre-config is
found on host raised since bump to version 2.9.7 in commit
42e34cf10f9eb037aa8c48a4fb9e8f521901b983:

/home/thomas/autobuild/instance-0/output-1/per-package/modsecurity2/host/bin/../lib/gcc/mips64el-buildroot-linux-gnu/11.3.0/../../../../mips64el-buildroot-linux-gnu/bin/ld: cannot find -lpcre: No such file or directory

Fixes:
 - http://autobuild.buildroot.org/results/f4864f8cc1d07e357f6e5f8302c19ae94e9cf3af

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/modsecurity2/modsecurity2.mk

@@ -21,6 +21,7 @@ MODSECURITY2_CONF_OPTS = \
 	--with-apxs=$(STAGING_DIR)/usr/bin/apxs \
 	--without-curl \
 	--without-lua \
+	--without-pcre \
 	--without-yajl \
 	--without-ssdeep