scripts/extract_dts_includes.py: Reduce code for handling chosen names
scripts/extract_dts_includes.py: Reduce code for handling chosen names

We have the same pattern for how we map a chosen property to the device
label that generates a Kconfig define.  Rather than duplicating the code
over and over again, lets just iterate over a list of defines and chosen
properties.  This also provides us a list we can use in the future to
special case handle the defines associated with names.

Signed-off-by: Kumar Gala <a5e5248af4cd4f0ed8c515f61d40a6e2db46a66e@linaro.org>

runchip/zephyr-cc3220,aceofall/zephyr-iotos,zephyriot/zephyr,zephyrproject-rtos/zephyr,aceofall/zephyr-iotos,kraj/zephyr,GiulianoFranchetto/zephyr,ldts/zephyr,fbsder/zephyr,ldts/zephyr,GiulianoFranchetto/zephyr,fbsder/zephyr,Vudentz/zephyr,mbolivar/zephyr,zephyriot/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,zephyrproject-rtos/zephyr,fbsder/zephyr,kraj/zephyr,zephyrproject-rtos/zephyr,zephyriot/zephyr,explora26/zephyr,explora26/zephyr,punitvara/zephyr,nashif/zephyr,mbolivar/zephyr,fbsder/zephyr,rsalveti/zephyr,fbsder/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,runchip/zephyr-cc3220,rsalveti/zephyr,finikorg/zephyr,Vudentz/zephyr,zephyriot/zephyr,aceofall/zephyr-iotos,nashif/zephyr,ldts/zephyr,punitvara/zephyr,rsalveti/zephyr,Vudentz/zephyr,kraj/zephyr,zephyriot/zephyr,nashif/zephyr,galak/zephyr,rsalveti/zephyr,punitvara/zephyr,kraj/zephyr,runchip/zephyr-cc3220,finikorg/zephyr,runchip/zephyr-cc3220,zephyrproject-rtos/zephyr,mbolivar/zephyr,galak/zephyr,mbolivar/zephyr,nashif/zephyr,finikorg/zephyr,nashif/zephyr,Vudentz/zephyr,finikorg/zephyr,Vudentz/zephyr,galak/zephyr,aceofall/zephyr-iotos,runchip/zephyr-cc3220,galak/zephyr,finikorg/zephyr,GiulianoFranchetto/zephyr,ldts/zephyr,galak/zephyr,Vudentz/zephyr,kraj/zephyr,GiulianoFranchetto/zephyr,explora26/zephyr,explora26/zephyr,mbolivar/zephyr,aceofall/zephyr-iotos,punitvara/zephyr,ldts/zephyr,rsalveti/zephyr