[CRIU] [PATCH 2/3] arch:arm: add atomic_cmpxchg

[Pavel Emelyanov]

Build fails with it.

10:08:44 /tmp/ccIa0Ewn.s: Assembler messages:
10:08:44 /tmp/ccIa0Ewn.s:5846: Error: architectural extension `mp' is not allowed for the current base architecture
10:08:44 /tmp/ccIa0Ewn.s:5847: Error: selected processor does not support ARM mode `pldw [r3,#0]'
10:08:44 make[1]: *** [cr-restore.o] Error 1
10:08:44 make[1]: *** Waiting for unfinished jobs....
10:08:45 make[1]: Leaving directory `/home/jenkins/workspace/Rpi-CRIU'
10:08:45 make: *** [built-in.o] Error 2
10:08:46 Build step 'Execute shell' marked build as failure