Data/bss section initialization fix (#492)
Data/bss section initialization fix (#492)

Makes data/bss initialization support sections with length not a multiple of 4-bytes. Previously such a binary caused an infinite loop or hard fault upon boot.
bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn