package/dovecot: bump version to 2.3.5

Release notes:
https://www.dovecot.org/list/dovecot-news/2019-March/000399.html

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/dovecot/dovecot.hash

@@ -1,5 +1,5 @@
 # Locally computed after checking signature
-sha256 b8873e2ce5c33e58963bb7a8d2ff8427c09dbfdd63e13a0b0f4502864043aa07  dovecot-2.3.4.1.tar.gz
+sha256 bfe112ec6d11f7d6c6f7f0440e3b6e2c840c15cec1e99466b5495765d54aaaff  dovecot-2.3.5.tar.gz
 sha256 a363b132e494f662d98c820d1481297e6ae72f194c2c91b6c39e1518b86240a8  COPYING
 sha256 dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551  COPYING.LGPL
 sha256 52b8c95fabb19575281874b661ef7968ea47e8f5d74ba0dd40ce512e52b3fc97  COPYING.MIT

package/dovecot/dovecot.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 DOVECOT_VERSION_MAJOR = 2.3
-DOVECOT_VERSION = $(DOVECOT_VERSION_MAJOR).4.1
+DOVECOT_VERSION = $(DOVECOT_VERSION_MAJOR).5
 DOVECOT_SITE = https://www.dovecot.org/releases/$(DOVECOT_VERSION_MAJOR)
 DOVECOT_INSTALL_STAGING = YES
 DOVECOT_LICENSE = LGPL-2.1, MIT, Public Domain, BSD-3-Clause, Unicode-DFS-2015