golang: Update to 1.13

Signed-off-by: Xingwang Liao <kuoruan@gmail.com>

lang/golang/golang-version.mk

@@ -10,5 +10,5 @@ ifeq ($(origin GO_INCLUDE_DIR),undefined)
 endif
 
 
-GO_VERSION_MAJOR_MINOR:=1.12
-GO_VERSION_PATCH:=9
+GO_VERSION_MAJOR_MINOR:=1.13
+GO_VERSION_PATCH:=

lang/golang/golang/Makefile

@@ -18,7 +18,7 @@ GO_SOURCE_URLS:=https://dl.google.com/go/ \
 
 PKG_SOURCE:=go$(PKG_VERSION).src.tar.gz
 PKG_SOURCE_URL:=$(GO_SOURCE_URLS)
-PKG_HASH:=ab0e56ed9c4732a653ed22e232652709afbf573e710f56a07f7fdeca578d62fc
+PKG_HASH:=3fc0b8b6101d42efd7da1da3029c0a13f22079c0c37ef9730209d8ec665bf122
 
 PKG_LICENSE:=BSD-3-Clause
 PKG_LICENSE_FILES:=LICENSE