Combine consecutive, mutually-exclusive status checks

[thnkslprpt]

Checklist

• I reviewed the Contributing Guide.
• I performed a cursory search to see if the bug report is relevant, not redundant, nor in conflict with other tickets.

Describe the bug
md_app.c contains a couple of consecutive, mutually exclusive status checks.

Code snips

MD/fsw/src/md_app.c

Lines 188 to 197 in 116d298

	if (Status != CFE_SUCCESS)
	{
	CFE_ES_WriteToSysLog("MD_APP:Call to CFE_EVS_Register Failed:RC=%d\n", Status);
	}
	/*
	** Set up for Software Bus Services
	*/
	if (Status == CFE_SUCCESS)
	{

MD/fsw/src/md_app.c

Lines 274 to 283 in 116d298

	if (Status != CFE_SUCCESS)
	{
	CFE_EVS_SendEvent(MD_CREATE_PIPE_ERR_EID, CFE_EVS_EventType_ERROR, "Failed to create pipe. RC = %d", Status);
	}
	/*
	** Subscribe to Housekeeping request commands
	*/
	if (Status == CFE_SUCCESS)
	{

Expected behavior
Combine into an if/else - no need to do 2 evaluations.

Reporter Info
Avi Weiss @thnkslprpt