[openwrt/openwrt] ustream-ssl: update to latest git HEAD

[LEDE Commits]

blogic pushed a commit to openwrt/openwrt.git, branch master:
https://git.lede-project.org/52ba5760b771d873fe21d260e3b53506663b6144

commit 52ba5760b771d873fe21d260e3b53506663b6144
Author: John Crispin <john at phrozen.org>
AuthorDate: Tue May 1 11:11:16 2018 +0200

    ustream-ssl: update to latest git HEAD
    
    527e700 ustream-ssl: Remove RC4 from ciphersuite in server mode.
    39a6ce2 ustream-ssl: Enable ECDHE with OpenSSL.
    45ac930 remove polarssl support
    
    Signed-off-by: John Crispin <john at phrozen.org>
---
 package/libs/ustream-ssl/Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/package/libs/ustream-ssl/Makefile b/package/libs/ustream-ssl/Makefile
index 1a8e0e7..e1520f9 100644
--- a/package/libs/ustream-ssl/Makefile
+++ b/package/libs/ustream-ssl/Makefile
@@ -5,9 +5,9 @@ PKG_RELEASE:=3
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/ustream-ssl.git
-PKG_SOURCE_DATE:=2016-07-02
-PKG_SOURCE_VERSION:=ec80adaa1b47f28d426fa19c692011ce60b992d6
-PKG_MIRROR_HASH:=bfbad6b4e8c1e933f0bfaab43cbdd44a536c08128c3a779e6f2395a6a886aab7
+PKG_SOURCE_DATE:=2018-04-30
+PKG_SOURCE_VERSION:=527e7002d0429465bd49c0c0d416ef22fbf5ae86
+PKG_MIRROR_HASH:=b0b4219730a369741a192a67d4fbf7328bd62df8ae4f0d0e3084461e3bbaba54
 CMAKE_INSTALL:=1
 
 PKG_BUILD_DIR=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_SOURCE_SUBDIR)