include: kernel: Fix documentation for TICKLESS_KERNEL API's
include: kernel: Fix documentation for TICKLESS_KERNEL API's

Fix documentation scope for TICKLESS_KERNEL API's.

Signed-off-by: Ramakrishna Pallala <8cb5df094165bcc31e7d772ccd8d87d8c4d8f761@intel.com>

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