Fix comparison of String8 to char* literal

Clang (correctly) interprets

if ("." == sName)

as

if ("." == (const char*)sName)

and recognizes that comparing the pointers isn't what was meant.

With

if (sName == ".")

both clang and gcc see and use String8::operator==(const char *),
ensuring we get the wanted behavior.

Change-Id: Ide240e13214a56f6899f72de3db75dac647e6d4b
Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>

drm/libdrmframework/include/PlugInManager.h

@@ -238,7 +238,7 @@ private:
      */
     bool isDotOrDDot(const struct dirent* pEntry) const {
         String8 sName(pEntry->d_name);
-        return "." == sName || ".." == sName;
+        return sName == "." || sName == "..";
     }
 
     /**