bind: Update to 9.11.2-P1

New upstream release fixes the following security issues:

 * CVE-2017-3145: BIND was improperly sequencing cleanup operations on
   upstream recursion fetch contexts, leading in some cases to a use-after-free
   error that can trigger an assertion failure and crash in named.

Signed-off-by: Noah Meyerhans <frodo@morgul.net>

net/bind/Makefile

@@ -9,8 +9,8 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=bind
-PKG_VERSION:=9.11.2
-PKG_RELEASE:=3
+PKG_VERSION:=9.11.2-P1
+PKG_RELEASE:=1
 USERID:=bind=57:bind=57
 
 PKG_MAINTAINER:=Noah Meyerhans <frodo@morgul.net>
@@ -20,7 +20,7 @@ PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:= \
 	http://www.mirrorservice.org/sites/ftp.isc.org/isc/bind9/$(PKG_VERSION) \
 	http://ftp.isc.org/isc/bind9/$(PKG_VERSION)
-PKG_HASH:=7f46ad8620f7c3b0ac375d7a5211b15677708fda84ce25d7aeb7222fe2e3c77a
+PKG_HASH:=cec31548832fca3f85d95178d4019b7d702039e8595d4c93914feba337df1212
 
 PKG_FIXUP:=autoreconf
 PKG_REMOVE_FILES:=aclocal.m4 libtool.m4