CMake: couple fixes for UWP

Fix a capitalization error in CMakeLists.txt
Link dxgi.lib only in UWP compilation in CMakeLists.txt

Bug: dawn:766
Change-Id: I011f44c8147998a9f4b3a55b25888ca1ad05a3e1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/56180
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

CMakeLists.txt

@@ -56,7 +56,7 @@ set(USE_X11 OFF)
 set(BUILD_EXAMPLE OFF)
 if (WIN32)
     set(ENABLE_D3D12 ON)
-    if (not WINDOWS_STORE)
+    if (NOT WINDOWS_STORE)
         # Enable Vulkan in win32 compilation only
         # since UWP only supports d3d
         set(ENABLE_VULKAN ON)

src/dawn_native/CMakeLists.txt

@@ -205,7 +205,9 @@ endif()
 # So we only link to it in debug build when compiling for UWP.
 # In win32 we load dxgi.dll using LoadLibrary
 # so no need for static linking.
+if (WINDOWS_STORE)
     target_link_libraries(dawn_native PRIVATE debug dxgi.lib)
+endif()
 
 if (DAWN_ENABLE_D3D12)
     target_sources(dawn_native PRIVATE