libnss: bump to version 3.21

Disable gtests since they require C++ support.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libnss/libnss.hash

@@ -1,2 +1,2 @@
-# From https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_20_RTM/src/SHA256SUMS
-sha256	5e38d4b9837ca338af966b97fc91c07f67ad647fb38dc4af3cfd0d84e477d15c	nss-3.20.tar.gz
+# From https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_3_21_RTM/src/SHA256SUMS
+sha256	3f7a5b027d7cdd5c0e4ff7544da33fdc6f56c2f8c27fff02938fd4a6fbe87239	nss-3.21.tar.gz

package/libnss/libnss.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBNSS_VERSION = 3.20
+LIBNSS_VERSION = 3.21
 LIBNSS_SOURCE = nss-$(LIBNSS_VERSION).tar.gz
 LIBNSS_SITE = https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/NSS_$(subst .,_,$(LIBNSS_VERSION))_RTM/src
 LIBNSS_DISTDIR = dist
@@ -19,6 +19,7 @@ LIBNSS_BUILD_VARS = \
 	NSPR_LIB_DIR=$(STAGING_DIR)/usr/lib \
 	BUILD_OPT=1 \
 	NS_USE_GCC=1 \
+	NSS_DISABLE_GTESTS=1 \
 	NSS_USE_SYSTEM_SQLITE=1 \
 	NSS_ENABLE_ECC=1 \
 	NATIVE_CC="$(HOSTCC)" \