sanitycheck: do not call cmake twice on run
sanitycheck: do not call cmake twice on run

In many cases we are calling cmake twice with the same options, first to
build, and then we do the same thing when we want to call 'make run'.
Just call cmake once.

Signed-off-by: Anas Nashif <0d9952ec84ac43c159f6b7e7ed99a9080c00dd6e@intel.com>

zephyrproject-rtos/zephyr,ldts/zephyr,kraj/zephyr,mbolivar/zephyr,ldts/zephyr,finikorg/zephyr,explora26/zephyr,ldts/zephyr,zephyriot/zephyr,nashif/zephyr,kraj/zephyr,Vudentz/zephyr,explora26/zephyr,ldts/zephyr,Vudentz/zephyr,zephyriot/zephyr,zephyrproject-rtos/zephyr,punitvara/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,GiulianoFranchetto/zephyr,finikorg/zephyr,finikorg/zephyr,galak/zephyr,explora26/zephyr,Vudentz/zephyr,GiulianoFranchetto/zephyr,zephyriot/zephyr,Vudentz/zephyr,galak/zephyr,galak/zephyr,zephyriot/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,punitvara/zephyr,Vudentz/zephyr,nashif/zephyr,mbolivar/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,ldts/zephyr,zephyriot/zephyr,zephyrproject-rtos/zephyr,kraj/zephyr,kraj/zephyr,mbolivar/zephyr,finikorg/zephyr,nashif/zephyr,nashif/zephyr,explora26/zephyr,Vudentz/zephyr,galak/zephyr,mbolivar/zephyr,punitvara/zephyr,galak/zephyr,kraj/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr,finikorg/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr