writefrudata: drop extra parens in call to parse

Drop extra parentheses around parameters in call to parse_fru_area.
This involves changing a casting from c-style to a static_cast<>.

Change-Id: I281a950146fd296f8c9b15bd6dfc8562ad9b14bc
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/writefrudata.cpp b/writefrudata.cpp
index 1340669..11e3d77 100644
--- a/writefrudata.cpp
+++ b/writefrudata.cpp
@@ -158,8 +158,9 @@
     {
         fruid = fruArea->getFruID();
         // Fill the container with information
-        rc = parse_fru_area((fruArea)->getType(), (void*)(fruArea)->getData(),
-                            (fruArea)->getLength(), fruData);
+        rc = parse_fru_area(fruArea->getType(),
+                            static_cast<const void*>(fruArea->getData()),
+                            fruArea->getLength(), fruData);
         if (rc < 0)
         {
             log<level::ERR>("Error parsing FRU records");