Source: https://github.com/freebsd/freebsd-src/blob/main/sys/sys/elf_common.h
Trimed to meet the minimal requirements for the Zephyr elf file to be loaded
Also added elf file header data struct and program/section entry data structs.
Tracked-On: #6323
Signed-off-by: Zhou, Wu <wu.zhou@intel.com>
Reviewed-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Zhou, Wu