[Driver] Test ignored target-specific options for AMDGPU/NVPTX (#79222)

Fix missing test coverage after #70740 #70760

When compiling for CUDA/HIP, the driver creates a cc1 job to compile for
amdgcn/nvptx triple using most options.
Certain target-specific options should be ignored, not lead to an error
(`err_drv_unsupported_opt_for_target`).

Author: MaskRay

clang/test/Driver/unsupported-option-gpu.c

@@ -0,0 +1,5 @@
+/// Some target-specific options are ignored for GPU, so %clang exits with code 0.
+// DEFINE: %{check} = %clang -### -c -mcmodel=medium
+
+// RUN: %{check} -x cuda %s --cuda-path=%S/Inputs/CUDA/usr/local/cuda --offload-arch=sm_60 --no-cuda-version-check -fbasic-block-sections=all
+// RUN: %{check} -x hip %s --rocm-path=%S/Inputs/rocm -nogpulib -nogpuinc