1.0.1 broke Vulkan field allocation on NVIDIA GPUs

[whorfin]

Describe the bug
I have a laptop with "Intel UHD Graphics 630" and "NVIDIA GeForce GTX 1070" GPUs
1.0.0 would default to using the Intel device for Vulkan [which wasn't good from a performance perspective] while 1.0.1 seems to now select the NVIDIA device. That's good, but the NVIDIA version now blows up when attempting to allocate a field.

To Reproduce

#!/usr/bin/python3
import sys
import os

import taichi as ti

#os.environ["TI_VISIBLE_DEVICE"]="1" # Intel device works, nvidia fails
ti.init(arch=ti.vulkan)

fieldSize = 64

print("Allocating...", end="")
sys.stdout.flush()
in_field = ti.field(ti.f32, shape=(fieldSize, fieldSize))

print("\nDone")

Log/Screenshots
On this laptop, the NVIDIA device is device 0; uncommenting the "TI_VISIBLE_DEVICE" environment settings, the Intel device is used and works.

Here we force the Intel device and it works:

$ python buggy.py
[Taichi] version 1.0.1, llvm 10.0.0, commit 1c3619d9, win, python 3.9.7
[Taichi] Starting on arch=vulkan
[I 05/02/22 17:05:40.271 14952] [D:/a/taichi/taichi/taichi/backends/vulkan/vulkan_device_creator.cpp:pick_physical_device@363] Found Vulkan Device 0 (NVIDIA GeForce GTX 1070 with Max-Q Design)
[I 05/02/22 17:05:40.272 14952] [D:/a/taichi/taichi/taichi/backends/vulkan/vulkan_device_creator.cpp:pick_physical_device@363] Found Vulkan Device 1 (Intel(R) UHD Graphics 630)
[I 05/02/22 17:05:40.272 14952] [D:/a/taichi/taichi/taichi/backends/vulkan/vulkan_device_creator.cpp:create_logical_device@431] Vulkan Device "Intel(R) UHD Graphics 630" supports Vulkan 0 version 1.
1.120
Allocating...
Done

...and here we let the default NVIDIA device get used, and we fail:

$ python buggy.py
[Taichi] version 1.0.1, llvm 10.0.0, commit 1c3619d9, win, python 3.9.7
[Taichi] Starting on arch=vulkan
[I 05/02/22 17:05:32.138 11916] [D:/a/taichi/taichi/taichi/backends/vulkan/vulkan_device_creator.cpp:pick_physical_device@363] Found Vulkan Device 0 (NVIDIA GeForce GTX 1070 with Max-Q Design)
[I 05/02/22 17:05:32.139 11916] [D:/a/taichi/taichi/taichi/backends/vulkan/vulkan_device_creator.cpp:pick_physical_device@363] Found Vulkan Device 1 (Intel(R) UHD Graphics 630)
[I 05/02/22 17:05:32.139 11916] [D:/a/taichi/taichi/taichi/backends/vulkan/vulkan_device_creator.cpp:create_logical_device@431] Vulkan Device "NVIDIA GeForce GTX 1070 with Max-Q Design" supports Vul
kan 0 version 1.3.194
Assertion failed: m_VulkanFunctions.vkGetDeviceBufferMemoryRequirements != nullptr, file D:/a/taichi/taichi/external/VulkanMemoryAllocator/include\vk_mem_alloc.h, line 14440

[bobcao3]

Duplicate of #4891 , fixed in #4893