As now throttle level is extended to THROTTLE_LEVEL_5,
previous array 'dutycycle_level' of size 4 may use index
value 4..5 during initialization. Change the array size to
THROTTLE_LEVEL_MAX to avoid out of bound accessing.
Change-Id: I5f9f8cb15e6fbdd8e5b4deccddca954fc73cd8e3
CRs-Fixed: 3433333