coresight-tpiu: Fix W=1 warning in TPIU driver

coresight-tpiu: Fix W=1 warning in TPIU driver

  CC      drivers/hwtracing/coresight/coresight-etm4x-core.o
  CC      drivers/hwtracing/coresight/coresight-etm4x-sysfs.o
  CC      drivers/hwtracing/coresight/coresight-stm.o
drivers/hwtracing/coresight/coresight-tpiu.c:53: warning: Cannot understand  * @base:       memory mapped base address for this component.
 on line 53 - I thought it was a doc line
  CC      drivers/hwtracing/coresight/coresight-cpu-debug.o
  CC      drivers/hwtracing/coresight/coresight-catu.o

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-15-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>