Change use of LoadLibrary to LoadLibraryA

src/ports/SkOSLibrary_win.cpp

Index: src/ports/SkOSLibrary_win.cpp
diff --git a/src/ports/SkOSLibrary_win.cpp b/src/ports/SkOSLibrary_win.cpp
index 69754db375c759979159eab80fc1f4813861a4db..a1249f893b0abaacff1958ef3202371b9a685421 100644
--- a/src/ports/SkOSLibrary_win.cpp
+++ b/src/ports/SkOSLibrary_win.cpp
@@ -12,7 +12,7 @@
 #include <windows.h>
 
 void* DynamicLoadLibrary(const char* libraryName) {
-    return LoadLibrary(libraryName);
+    return LoadLibraryA(libraryName);
 }
 
 void* GetProcedureAddress(void* library, const char* functionName) {