package/docker-cli: bump version to 18.09.9

Includes a number of post-18.09.7 bugfixes and to keep in sync with the
docker-engine version.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/docker-cli/docker-cli.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  62e25a0935bee75f999fb95b224ad982054fc1adc4351ce98d704ec00114ce57  docker-cli-18.09.7.tar.gz
+sha256  cef3f9e8615cde906619f7ab021655a8b974d1b497ce0e5787b1afccbeabb08d  docker-cli-18.09.9.tar.gz
 sha256	2d81ea060825006fc8f3fe28aa5dc0ffeb80faf325b612c955229157b8c10dc0  LICENSE

package/docker-cli/docker-cli.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-DOCKER_CLI_VERSION = 18.09.7
+DOCKER_CLI_VERSION = 18.09.9
 DOCKER_CLI_SITE = $(call github,docker,cli,v$(DOCKER_CLI_VERSION))
 DOCKER_CLI_WORKSPACE = gopath