Add x86_64

Change-Id: Ib0f31d147546ae187697867c6a0b937266bb9b39
diff --git a/common/arch.go b/common/arch.go
index 62d6980..4753f5a 100644
--- a/common/arch.go
+++ b/common/arch.go
@@ -188,6 +188,21 @@
 		// Properties for module variants being built to run on x86_64 (host or device)
 		X86_64 struct {
 			Embed `blueprint:"filter(android:\"arch_variant\")"`
+
+			// X86 arch variants
+			Haswell     interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Ivybridge   interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Sandybridge interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Silvermont  interface{} `blueprint:"filter(android:\"arch_variant\")"`
+
+			// X86 arch features
+			Ssse3  interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Sse4   interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Sse4_1 interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Sse4_2 interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Aes_ni interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Avx    interface{} `blueprint:"filter(android:\"arch_variant\")"`
+			Popcnt interface{} `blueprint:"filter(android:\"arch_variant\")"`
 		}
 	}