Add new dependency library for vulkan tests (#10136)

**Background**:

We removed the inline flag of the symbol
`torch::jit::GetBackendMetaSerialization()` from and moved it to .cpp in
order to make the dynamic registration related to PyTorch serialization
work properly.

However, after testing, it was found that Vulkan's tests depend on the
symbol named `torch::jit::GetBackendMetaSerialization()`, so after the
above changes, it is necessary to explicitly link libtorch_cpu (which
contains the torch::jit::GetBackendMetaSerialization() symbol)

For more information, see
[PR](pytorch/pytorch#147095), especially this
[comment](pytorch/pytorch#147095 (comment))

cc @SS-JIA @manuelcandales @cbilgin

Author: FFFrog

backends/vulkan/test/op_tests/targets.bzl

@@ -8,6 +8,7 @@ def define_test_targets(test_name, extra_deps = [], src_file = None, is_fbcode =
         "//third-party/googletest:gtest_main",
         "//executorch/backends/vulkan:vulkan_graph_runtime",
         runtime.external_dep_location("libtorch"),
+        runtime.external_dep_location("libtorch_cpu"),
     ] + extra_deps
 
     src_file_str = src_file if src_file else "{}.cpp".format(test_name)