Merge pull request #7968 from neheb/patch-9

geth: Update to 1.8.21

net/geth/Makefile

@@ -11,12 +11,12 @@ PKG_LICENSE:=ASL-2.0
 PKG_MAINTAINER:=Mislav Novakovic <mislav.novakovic@sartura.hr>
 
 PKG_NAME:=go-ethereum
-PKG_VERSION:=1.8.20
+PKG_VERSION:=1.8.21
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/ethereum/go-ethereum/tar.gz/v${PKG_VERSION}?
-PKG_HASH:=7299f72a1d35a2653075a2070babf78f98f6eb3f41da43293304737ac0156658
+PKG_HASH:=736028b4babd44d67a70a4a7883a06e97263449805c8c067b7dfd77e9fa94299
 
 PKG_BUILD_DEPENDS:=golang/host
 PKG_BUILD_PARALLEL:=1