Win32: Enable large address aware explicitly

Large address aware is enabled by default in 64-bit
compilers, but not 32-bit compilers. But Qt users
may build 32-bit Qt themself, in this case large
address aware is disabled in fact, and it may cause
some issues. So we pass /LARGEADDRESSAWARE to the
linker unconditionally to make sure large address
aware is enabled for both 32-bit and 64-bit builds.

Microsoft Docs:
https://docs.microsoft.com/en-us/cpp/build/reference/largeaddressaware-handle-large-addresses?view=msvc-170

Change-Id: Idb2603d9ba0ba9ef4477ce1c3174b7c7e8ba76f6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

cmake/QtInternalTargets.cmake

@@ -203,7 +203,7 @@ if (MSVC)
     )
 
     target_link_options(PlatformCommonInternal INTERFACE
-        -DYNAMICBASE -NXCOMPAT
+        -DYNAMICBASE -NXCOMPAT -LARGEADDRESSAWARE
         $<$<NOT:$<CONFIG:Debug>>:-OPT:REF -OPT:ICF -GUARD:CF>
     )
 endif()

mkspecs/features/qt_module.prf

@@ -343,6 +343,8 @@ msvc {
     QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO += -guard:cf
     QMAKE_LFLAGS_RELEASE                  += /GUARD:CF
     QMAKE_LFLAGS_RELEASE_WITH_DEBUGINFO   += /GUARD:CF
+
+    QMAKE_LFLAGS += /LARGEADDRESSAWARE
 }
 
 win32 {