Replace 64bit funcions with operators in at_wini.c
Replace 64bit funcions with operators in at_wini.c

Change-Id: I5d4f85a55f9f9d4c2a26daca6957be8f57ba9164

veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi