[cmake] fix macOS compilation by forcing lz4 to be static (#4540)

Signed-off-by: crueter <crueter@eden-emu.dev>

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md).
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4540

CMakeModules/find/Findlz4.cmake

@@ -24,7 +24,7 @@ else()
 endif()
 
 if (lz4_FOUND AND NOT TARGET lz4::lz4)
-    if (TARGET LZ4::lz4_shared)
+    if (TARGET LZ4::lz4_shared AND NOT YUZU_STATIC_BUILD)
         add_library(lz4::lz4 ALIAS LZ4::lz4_shared)
     elseif (TARGET LZ4::lz4_static)
         add_library(lz4::lz4 ALIAS LZ4::lz4_static)

src/video_core/renderer_vulkan/vk_rasterizer.cpp

@@ -82,12 +82,7 @@ VkViewport GetViewportState(const Device& device, const Maxwell& regs, size_t in
 
     if (lower_left) {
         // Flip by surface clip height
-        const float clip_height = conv(static_cast<f32>(regs.surface_clip.height));
-        if (src.scale_y < 0.0f && y >= clip_height) {
-            y = clip_height - y;
-        } else {
-            y += clip_height;
-        }
+        y += conv(static_cast<f32>(regs.surface_clip.height));
         height = -height;
     }