Update avr attributes test for output change in r340519

After this commit there is an addrspace(1) before the attribute #. Since
these tests are only checking the value of the attribute add a {{.*}} to
make the test resilient to future output changes.

llvm-svn: 340522
diff --git a/clang/test/CodeGen/avr/attributes/signal.c b/clang/test/CodeGen/avr/attributes/signal.c
index 8285900..030cdc8 100644
--- a/clang/test/CodeGen/avr/attributes/signal.c
+++ b/clang/test/CodeGen/avr/attributes/signal.c
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 -triple avr-unknown-unknown -emit-llvm %s -o - | FileCheck %s
 
-// CHECK: define void @foo() #0
+// CHECK: define void @foo(){{.*}}#0
 __attribute__((signal)) void foo(void) { }
 
 // CHECK: attributes #0 = {{{.*signal.*}}}