SB Housekeeping InternalErrorCounter increments for nominal conditions

[jhnphm]

Describe the bug
SB Housekeeping InternalErrorCounter increments for nominal conditions such as CFE_SB_NO_MESSAGE or CFE_SB_TIME_OUT

To Reproduce
Have apps running that poll a pipe or block w/ timeout

Expected behavior
InternalErrorCounter only increments on actual errors

Code snips

cFE/modules/sb/fsw/src/cfe_sb_api.c

Line 2003 in a39b0a6

++CFE_SB_Global.HKTlmMsg.Payload.InternalErrorCounter;

System observed on:

• SP0
• OS: VxWorks 6.9
• Versions: CFE 9c86dd4

Additional context
Add any other context about the problem here.

Reporter Info
John N Pham, Northrop Grumman