root cause

1. UE camps on PLMN 42702f_LTE and 
	> LR reject with cause Cause#15: No Suitable Cells In tracking area (15)
2. UE camps on PLMN 42702f_UMTS and 
	> LR reject Cause#13: Roaming not allowed in this location area (13) and 
	> Attach Reject with Cause#7: GMM Cause: GPRS services not allowed (7)
3. UE marks sim_valid_for_ps = KAL_FALSE as Cause#7 is received.
4. Thus no further search done on RAT_LTE. So it is unable to camp on PLMN 42706f_LTE