msm8974-common: libril: Build non-inlined android_atomic methods

* All of the libsec-ril*.so libraries reference these symbols, but
  Google finally dropped the non-inlined versions from libcutils with
  Android 8.0. This could be handled with shims in numerous device
  trees, but shim semantics and implementation aren't exactly stable
  and we can handle it more cleanly here in one place.
* See LineageOS/android_system_core@103e8f560

Change-Id: I787372b739f3ace0d9cbbc33e4bffafa6876665e

ril/libril/ril_service.cpp

@@ -32,6 +32,11 @@
 #include <inttypes.h>
 #include <cutils/properties.h>
 
+#define ANDROID_ATOMIC_INLINE
+extern "C" {
+#include <cutils/atomic.h>
+}
+
 #define INVALID_HEX_CHAR 16
 
 using namespace android::hardware::radio;