[compat] fix freebsd mmap virtual base (#354)

Signed-off-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/354
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/common/host_memory.cpp

@@ -417,14 +417,11 @@ static void* ChooseVirtualBase(size_t virtual_size) {
 #else
 
 static void* ChooseVirtualBase(size_t virtual_size) {
-#if defined(__OpenBSD__) || defined(__sun__) || defined(__HAIKU__) || defined(__managarm__)
+#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__) || defined(__sun__) || defined(__HAIKU__) || defined(__managarm__) || defined(__AIX__)
     void* virtual_base = mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_ALIGNED_SUPER, -1, 0);
-
-    if (virtual_base != MAP_FAILED) {
+    if (virtual_base != MAP_FAILED)
         return virtual_base;
-    }
 #endif
-
     return mmap(nullptr, virtual_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
 }