libsodium: removed `--without-pthreads` configire arg (no longer required for musl)

Signed-off-by: Black Roland <black-roland@users.noreply.github.com>

libs/libsodium/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libsodium
 PKG_VERSION:=1.0.11
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://download.libsodium.org/libsodium/releases
@@ -52,7 +52,6 @@ endef
 
 CONFIGURE_ARGS+= \
 	--disable-ssp \
-	--without-pthreads \
 	$(if $(CONFIG_LIBSODIUM_MINIMAL),--enable-minimal=yes,--enable-minimal=no)
 
 define Build/InstallDev