UtAssert should enforce newline on messages only if its missing

[jphickey]

Is your feature request related to a problem? Please describe.
Currently the UT_BSP_DoText used by UtAssert appends a newline after every message, see here:

osal/ut_assert/src/utbsp.c

Line 184 in 706f0de

OS_BSP_ConsoleOutput_Impl("\n", 1);

However, in many calls to UtPrintf() the test author already included a \n in the format string, such as here:

osal/src/unit-tests/oscore-test/ut_oscore_task_test.c

Line 85 in 706f0de

UtPrintf("Starting GenericTask: %s, id: %lx\n", task_prop.name, OS_ObjectIdToInteger(task_id));

As a result there is extra whitespace in the log, example here:
https://gist.github.com/jphickey/ccb739d1f1cf6b36caca73e5ee9205cf#file-osal_core_ut-log-L391

Describe the solution you'd like
The append of the newline in UT_BSP_DoText() should only happen if the message did not have a trailing newline already. This will still accomplish the intent of making sure output messages end in a newline and do not run together, but will clean up extra unintended blank lines in the log files.

Additional context
This is mainly just a nitpick/pet peeve about the extra blank lines that come with "UtPrintf", but it also does potentially impact parsing log files with scripts.

Requester Info
Joseph Hickey, Vantage Systems, Inc.