Specify -msse3 on host as on target.

Make the host and the target x86 build more uniform by using the same machine flags.
Its unlikely Android has ever been built on a machine without SSE3 support.

Bug: 8068608
Change-Id: I19635528b61bf2c6faf02c2e575b1d9bf8025d3a
diff --git a/core/combo/HOST_linux-x86.mk b/core/combo/HOST_linux-x86.mk
index 3001f59..2d586a3 100644
--- a/core/combo/HOST_linux-x86.mk
+++ b/core/combo/HOST_linux-x86.mk
@@ -40,7 +40,8 @@
 HOST_GLOBAL_CFLAGS += -m64
 HOST_GLOBAL_LDFLAGS += -m64
 else
-HOST_GLOBAL_CFLAGS += -m32
+# We expect SSE3 floating point math.
+HOST_GLOBAL_CFLAGS += -mstackrealign -msse3 -mfpmath=sse -m32
 HOST_GLOBAL_LDFLAGS += -m32
 endif # BUILD_HOST_64bit