Prior to this commit, the following command failed to build dlsim:
    ./build_oai --phy_simulators -c

Choice has been made to define it in a .h file as a static inline
function.

The compilation line was:
    ./build_oai --eNB -w USRP

The file openairinterface5g/cmake_targets/log/lte-softmodem.Rel10.txt
has been checked and all LOG_X (and 'msg') warnings have been fixed.

Memory was allocated which was "lost" because the
address of the block was put in a pointer that is
overwritten just after.

Discussing with Elena, the current commit is the correct
way to do things.

command run:
    dos2unix openair1/SIMULATION/TOOLS/taus.c

The memset was also too big. It should only clear
one subframe.

Only tested without abstraction.
Abstraction does not work for the moment anyway, but just to
keep that in mind.

This is done in another function.

Don't do it twice.
The logic is: if ndi changed or it's a first tx then round=0
and later: if round==0 then status=ACTIVE

Note: the dci formats 2, 2A and 1E were not checked,
this has to be done. dlsch[0] and dlsch[1] (when
applicable) must be checked somehow.

Not sure at all about this one, seemed necessary to me,
but I don't get the full logic in there.

To be refined.

This is done a bit above in the code, no need to do it twice.

I am not sure this is enough. To be refined.

I doubt the case should happen. If it does, let's print an
error, will ease debugging.

Not sure if necessary, but better do it.

This reverts commit ce14050b, reversing
changes made to 0ada1e9e.

Conflicts:
	openair1/PHY/LTE_TRANSPORT/dlsch_demodulation.c
	openair1/PHY/impl_defs_top.h

Conflicts:
	openair1/PHY/INIT/lte_init.c
	openair1/PHY/LTE_TRANSPORT/dlsch_modulation.c
	openair1/PHY/LTE_TRANSPORT/power_control.c

2. Adding dlsch_encoding_SIC, where the fisrt argument is UE structure.
3. Adding general test cases for dlsim_tm4 simulator. 015110.