intel-microcode: update to version 20180807a

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/firmware/intel-microcode/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=intel-microcode
-PKG_VERSION:=20180703
-PKG_RELEASE:=2
+PKG_VERSION:=20180807a
+PKG_RELEASE:=1
 
 PKG_SOURCE:=intel-microcode_3.$(PKG_VERSION).$(PKG_RELEASE).tar.xz
 PKG_SOURCE_URL:=http://ftp.debian.org/debian/pool/non-free/i/intel-microcode/
-PKG_HASH:=26dfaa47100ce3d06f968edefa7539da10de7b96d5d8e26ee8174a040ee5cdae
+PKG_HASH:=1a7cb96d5c6a4abac2936236223d9bea79d7442dc1cfe9b712ff8e35374f0f9f
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-3.$(PKG_VERSION).$(PKG_RELEASE)
 
 PKG_BUILD_DEPENDS:=iucode-tool/host