Bionic has <sys/ucontext.h> now.

Change-Id: I7b97df04204b22e8976b64bf93af72a311ddb0e9
diff --git a/runtime/common_test.h b/runtime/common_test.h
index 5e6354e..fce3f3f 100644
--- a/runtime/common_test.h
+++ b/runtime/common_test.h
@@ -160,11 +160,7 @@
 
 #if defined(__arm__)
 
-
-#include <signal.h>
-#include <asm/sigcontext.h>
-#include <asm-generic/ucontext.h>
-
+#include <sys/ucontext.h>
 
 // A signal handler called when have an illegal instruction.  We record the fact in
 // a global boolean and then increment the PC in the signal context to return to