Fix small bugs in Kernel (#998)

* Fix small bugs

* Cast sizeof to BaseType_t

* Test removing assert to fix UT

* Revert change to tasks.c

Since configIDLE_TASK_NAME must be defined as a string according to
the documentation, the macro will always be NULL terminated. Which
means that the check `if( cIdleName[ xIdleTaskNameIndex ] == ( char ) 0x00 )`
will catch the end of string.

* Update coverity config; Add coverity version; Update pvPortMalloc declaration to match the definitions.

* Add port files to sed command

* Remove warnings about unused parameters in port code

---------

Co-authored-by: Rahul Kar <118818625+kar-rahul-aws@users.noreply.github.com>

portable/template/port.c

@@ -19,6 +19,10 @@ StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
                                      TaskFunction_t pxCode,
                                      void * pvParameters )
 {
+    ( void ) pxTopOfStack;
+    ( void ) pvParameters;
+    ( void ) * pxCode;
+
     return NULL;
 }