knock: bump git snapshot

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/knock/knock.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-KNOCK_VERSION = 7666f2e86e18d482eaad5fe1fea46d87d80b0555
+KNOCK_VERSION = 7ce33cd553800f48f16b3bb70b9cd0f1310d2c18
 KNOCK_SITE = $(call github,jvinet,knock,$(KNOCK_VERSION))
 KNOCK_LICENSE = GPLv2+
 KNOCK_LICENSE_FILES = COPYING