Makefile: Add dts config include file
Makefile: Add dts config include file

This patch adds a dts config include file that is sourced during builds.
The config file contents are key value pairs derived from the DTS board
descriptions.

Jira: ZEP-2119

Change-Id: I4d50e795ba776645b56f0b83410cbb5b0a8fd4fa
Signed-off-by: Andy Gross <4ba87047449f5700e8758e3b1af36e94376c2fff@linaro.org>

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