time: add sancus_time_add_ms()
time: add sancus_time_add_ms()

Signed-off-by: Alejandro Mery <cdfd70a51550235bbe9d06a3549b54fb5429c504@geeks.cl>

sancus-project/sancus-core,sancus-project/sancus-core,sancus-project/sancus-core