kernel: add missing symbol

Signed-off-by: Daniel Golle <[email protected]>

SVN-Revision: 44373

target/linux/generic/config-3.18

@@ -3948,6 +3948,7 @@ CONFIG_TMPFS_XATTR=y
 # CONFIG_TPS65010 is not set
 # CONFIG_TPS6507X is not set
 # CONFIG_TR is not set
+# CONFIG_TRACEPOINT_BENCHMARK is not set
 # CONFIG_TRACER_SNAPSHOT is not set
 # CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
 # CONFIG_TRACE_BRANCH_PROFILING is not set