linker: arm: add missing period for CCM section name
linker: arm: add missing period for CCM section name

The CCM section name macros are missing the leading period.
Add the period so those items supposed to be in CCM sections
are actually being placed correctly.

Signed-off-by: Daniel Leung <d94e04d205b5962d7873a139ef298b03c1717f72@intel.com>

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