File riscv.patch of Package efitools

Index: efitools-1.9.2/Make.rules
===================================================================
--- efitools-1.9.2.orig/Make.rules
+++ efitools-1.9.2/Make.rules
@@ -9,6 +9,8 @@ else ifeq ($(ARCH),aarch64)
 ARCH3264 =
 else ifeq ($(ARCH),arm)
 ARCH3264 =
+else ifeq ($(ARCH),riscv64)
+ARCH3264 =
 else
 $(error unknown architecture $(ARCH))
 endif