Fix cqi_req_flag, to prevent continously schedule cqi after set it to 1 and before actually receive it at the right subframe.

This reverts commit fad303fe, reversing
changes made to e35921cf.

# Conflicts:
#	openair2/RRC/LITE/rrc_eNB.c

(cherry picked from commit 3432385280c3155ee63a54be7c2e4846a17299de)

# Conflicts:
#	openair2/UTIL/LOG/log.c

(cherry picked from commit 0e550a32e46d797d03fd72e54e474762d4db7614)

# Conflicts:
#	openair2/LAYER2/RLC/rlc.c

・Delete double BSR calculation.
・change TBS for mcs setting bit to byte.

(cherry picked from commit 39cd022424ebe98c95be32cbb4127aa9d0e0ff3b)

As reported by Emad Alizade:

    According to "Issue255 256 257 paging reesta release" that has been
    merged in develop version, we have a question: In rrc_eNB_free_UE()
    function only all ulsch related memory of user has been cleaned, but
    I think not only ulsch memory but also dlsch memory must be cleaned.
    I tested the latest develop version and with repetition UE attach-detach
    procedures we find that the dlsch memory has not been cleaned and after
    repeat this sequence (45 times) assertion with cause UE_id!=-1 (no free
    or exiting dlsch_context, dci_tools.c: fill_dci_and_dlsch() ) occurred
    and no UE will be attached to system.

The fixes in this commit are from Emad Alizade.

(cherry picked from commit 4b5b5564)

# Conflicts:
#	openair1/PHY/LTE_TRANSPORT/dlsch_coding.c
#	openair2/LAYER2/MAC/eNB_scheduler.c
#	openair2/RRC/LITE/rrc_eNB.c