Android CTS 8.0 Release 8 (4666824)
Keep os/android-os.h compiling now we have __key in <sys/ipc.h>. am: 61e00348b1 am: c0df2e6737 am: bef3b0ed6e
am: cf41806599

Change-Id: I419b3f50f6734c42d44caa12b0630f92ad3cd9e4