hw/arm/iotkit.c: fix minor memory leak

Coverity (CID1390573) spots that we forgot to free the
gpioname strings in a loop in the iotkit realize function.
Correct the error.

This isn't a significant

hw/arm/iotkit.c: fix minor memory leak

Coverity (CID1390573) spots that we forgot to free the
gpioname strings in a loop in the iotkit realize function.
Correct the error.

This isn't a significant leak, because this function
only ever runs once.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-id: 20180427110137.19304-1-peter.maydell@linaro.org

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hw/arm/iotkit: Model Arm IOT Kit

Model the Arm IoT Kit documented in
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ecm0601256/index.html

The Arm IoT Kit is a subsystem which includes

hw/arm/iotkit: Model Arm IOT Kit

Model the Arm IoT Kit documented in
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ecm0601256/index.html

The Arm IoT Kit is a subsystem which includes a CPU and some devices,
and is intended be extended by adding extra devices to form a
complete system. It is used in the MPS2 board's AN505 image for the
Cortex-M33.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180220180325.29818-19-peter.maydell@linaro.org

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