package/dnsmasq: fix build with ubus and without dnssec

Fix the following build failure raised since bump to version 2.86 in
commit 5b29096f8fcb0acd8890073a56ba9d620b1f911c:

rfc1035.c: In function 'report_addresses':
rfc1035.c:978:49: error: 'struct dnsmasq_daemon' has no member named 'workspacename'
  978 |        if (!extract_name(header, len, &p, daemon->workspacename, 1, 0))
      |                                                 ^~

Fixes:
 - http://autobuild.buildroot.org/results/51242d4f532373544e3c7ea45036b8d41390b29b

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/dnsmasq/0003-Fix-FTBFS-when-CONNTRACK-and-UBUS-but-not-DNSSEC-compile-options-selected.patch

@@ -0,0 +1,34 @@
+From 2c60441239e1c10c4987cb586653b1ea08f703c0 Mon Sep 17 00:00:00 2001
+From: Simon Kelley <simon@thekelleys.org.uk>
+Date: Tue, 28 Sep 2021 23:42:15 +0100
+Subject: [PATCH] Fix FTBFS when CONNTRACK and UBUS but not DNSSEC compile
+ options selected.
+
+[Retrieved from:
+https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=2c60441239e1c10c4987cb586653b1ea08f703c0]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ src/dnsmasq.h | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/dnsmasq.h b/src/dnsmasq.h
+index c8a918a..3fdc1b0 100644
+--- a/src/dnsmasq.h
++++ b/src/dnsmasq.h
+@@ -1173,9 +1173,12 @@ extern struct daemon {
+   char *packet; /* packet buffer */
+   int packet_buff_sz; /* size of above */
+   char *namebuff; /* MAXDNAME size buffer */
++#if (defined(HAVE_CONNTRACK) && defined(HAVE_UBUS)) || defined(HAVE_DNSSEC)
++  /* CONNTRACK UBUS code uses this buffer, as well as DNSSEC code. */
++  char *workspacename;
++#endif
+ #ifdef HAVE_DNSSEC
+   char *keyname; /* MAXDNAME size buffer */
+-  char *workspacename; /* ditto */
+   unsigned long *rr_status; /* ceiling in TTL from DNSSEC or zero for insecure */
+   int rr_status_sz;
+   int dnssec_no_time_check;
+-- 
+2.20.1
+