bug fixes from Fujitsu (bugs 18, 19, 20)

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bug 18

Ttile:
Probably he/she wants to copy the contents of arrays, but
this coding doesn't copy anything, moreover index overflow
occurs.

Bug Location:
u2e_t[UE_id][eNB_id]->tx_data[3]=tx[eNB_id][3];
u2e_t[UE_id][eNB_id]->rx_data[3]=rx[NB_eNB_INST+UE_id][3];

Note:
Detected by CppCheck
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bug 19

Title:
Probably he/she wants to copy the contents of arrays, but
this coding doesn't copy anything, moreover index overflow
occurs.

Bug Location:
e2u_t[eNB_id][UE_id]->tx_data[3]=tx[NB_eNB_INST+UE_id][3];
e2u_t[eNB_id][UE_id]->rx_data[3]=rx[eNB_id][3];

Note:
Detected by CppCheck
----------------------------------------------------------
bug 20

Title:
Probably he/she wants to copy the contents of arrays, but
this coding doesn't copy anything, moreover index overflow
occurs.

Bug Location:
tx_data[3]=cthread->tx_data[3];
rx_data[3]=cthread->rx_data[3];

Note:
Detected by CppCheck
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