libnss: security bump to version 3.22.2

Fixes:
CVE-2016-1950 - heap-based buffer overflow related to the parsing of
certain ASN.1 structures. An attacker could create a specially-crafted
certificate which, when parsed by NSS, would cause a crash or execution
of arbitrary code with the permissions of the user.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libnss/libnss.hash

@@ -1,2 +1,2 @@
-# From https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_22_1_RTM/src/SHA256SUMS
-sha256	89e1fc7074e5c325962821289f4cd7d8207ae95af2308ba881215ed9ca68fa4f	nss-3.22.1.tar.gz
+# From https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_22_2_RTM/src/SHA256SUMS
+sha256	07d49287c527ac31200f02dcf8494cef19e936d8ed470802749c4dfc782d3650	nss-3.22.2.tar.gz

package/libnss/libnss.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBNSS_VERSION = 3.22.1
+LIBNSS_VERSION = 3.22.2
 LIBNSS_SOURCE = nss-$(LIBNSS_VERSION).tar.gz
 LIBNSS_SITE = https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_$(subst .,_,$(LIBNSS_VERSION))_RTM/src
 LIBNSS_DISTDIR = dist