package/collectd: fix build with dpdk_telemetry

Fix typo added by 44e0b6014f7e67901af346af8f6a9452b095ddd5

Fixes:
 - http://autobuild.buildroot.org/results/770293a007d683cb6f82f1fd3bcc20967e2b4bed

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

package/collectd/collectd.mk

@@ -161,7 +161,7 @@ COLLECTD_DEPENDENCIES = \
 	$(if $(BR2_PACKAGE_COLLECTD_CURL_JSON),libcurl yajl) \
 	$(if $(BR2_PACKAGE_COLLECTD_CURL_XML),libcurl libxml2) \
 	$(if $(BR2_PACKAGE_COLLECTD_DNS),libpcap) \
-	$(if $(BR2_PACKAGE_COLLECTD_DPKD_TELEMETRY),jansson) \
+	$(if $(BR2_PACKAGE_COLLECTD_DPDK_TELEMETRY),jansson) \
 	$(if $(BR2_PACKAGE_COLLECTD_GPS),gpsd) \
 	$(if $(BR2_PACKAGE_COLLECTD_GRPC),grpc) \
 	$(if $(BR2_PACKAGE_COLLECTD_IPTABLES),iptables) \