hv: treewide: fix 'Macro parameter not in brackets'

Add the brackets for Macro parameter to avoid the unintentional
mistakes.

A simple example that may cause mistakes:
        #define minus(x) -x
When the following call is made,
        z = minus(a-b)
it becomes:
        z = -a-b;
where "-a - b" is equivalent to "(-a) - b" rather than "- (a - b)", as
expected.

v2 -> v3:
 * convert DMAR_WAIT_COMPLETION to inline function
 * remove the macro PIC_PIN_FOREACH and implement the well-formed
   for loop in each case
 * replace __CPP_STRING with STRINGIFY and remove the unused CPP_STRING

v1 -> v2:
 * Remove some changes to function like macro since MISRA-C requires to
   use inline functions if it is possible.
   These MACRO brackets violations will be fixed together when fixing
   other issues related to function like macro.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>

hypervisor/include/lib/macros.h

@@ -8,9 +8,7 @@
 #define MACROS_H
 
 /** Replaces 'x' by the string "x". */
-#define __CPP_STRING(x) #x
-/** Replaces 'x' by its value. */
-#define CPP_STRING(x) __CPP_STRING(x)
+#define STRINGIFY(x) #x
 
 /* Macro used to check if a value is aligned to the required boundary.
  * Returns TRUE if aligned; FALSE if not aligned