Revert "host_memory: Allocate virtual_base with MAP_NORESERVE"

This reverts commit 4d7be85e73.

Fix VK_ERROR_OUT_OF_DEVICE_MEMORY

src/common/host_memory.cpp

@@ -416,7 +416,7 @@ public:
         }
 #else
         virtual_base = static_cast<u8*>(mmap(nullptr, virtual_size, PROT_NONE,
-                                             MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0));
+                                             MAP_PRIVATE | MAP_ANONYMOUS, -1, 0));
         if (virtual_base == MAP_FAILED) {
             LOG_CRITICAL(HW_Memory, "mmap failed: {}", strerror(errno));
             throw std::bad_alloc{};