Merge pull request #9691 from smlng/cpu/cc2538/vendor_header

cpu/cc2538/include/vendor/hw_aes.h

cpu/cc2538/include/vendor/hw_ana_regs.h

cpu/cc2538/include/vendor/hw_cctest.h

cpu/cc2538/include/vendor/hw_flash_ctrl.h

cpu/cc2538/include/vendor/hw_gpio.h

cpu/cc2538/include/vendor/hw_gptimer.h

cpu/cc2538/include/vendor/hw_i2cm.h

cpu/cc2538/include/vendor/hw_i2cs.h

cpu/cc2538/include/vendor/hw_ints.h

cpu/cc2538/include/vendor/hw_ioc.h

cpu/cc2538/include/vendor/hw_memmap.h

cpu/cc2538/include/vendor/hw_nvic.h

cpu/cc2538/include/vendor/hw_pka.h

cpu/cc2538/include/vendor/hw_rfcore_ffsm.h

cpu/cc2538/include/vendor/hw_rfcore_sfr.h

cpu/cc2538/include/vendor/hw_rfcore_xreg.h

cpu/cc2538/include/vendor/hw_smwdthrosc.h

cpu/cc2538/include/vendor/hw_soc_adc.h

cpu/cc2538/include/vendor/hw_ssi.h

cpu/cc2538/include/vendor/hw_sys_ctrl.h