[BUG] `DeviceContext.device_info.name` misidentifies 4090m as L4

Bug description

Actual behavior

DeviceContext(api="cuda").device_info.name is "L4" on a 4090 mobile card.

Expected behavior

I'm not sure if you are doing "closest match rounding down", since there aren't any AD103 cards you support, and L4 a the supported AD104 card, but it was surprising to see that classification. If this is intentional, I think it would be less confusing to see Name: ... 4090 ... and Closest Supported: L4.

Steps to reproduce

(Mojo) ohilyard@ohilyard-laptop:~/Documents/projects/mojo/stdlib/mojo/scratch$ mojo
Welcome to Mojo! 🔥

Expressions are delimited by a blank line.
Type `:quit` to exit the REPL and `:mojo help` for further assistance.

  1> from gpu.host.device_context import DeviceContext 
  2. var cuda = DeviceContext(api="cuda") 
  3. print(cuda.device_info.name) 
  4.  
L4
(DeviceContext) cuda = {
  (UnsafePointer[_DeviceContextCpp]) _handle = {
    (pointer<_gpu::_host::_device_context::__DeviceContextCpp>) address = 0x00005621356c8570
  }
}
  4> ^D
(Mojo) ohilyard@ohilyard-laptop:~/Documents/projects/mojo/stdlib/mojo/scratch$ nvidia-smi -L
GPU 0: NVIDIA GeForce RTX 4090 Laptop GPU (UUID: <REMOVED>)

System information

gpu-open driver 565.77
cuda 12.7
mojo 25.1.0.dev2025020205

Start by reproducing the report with DeviceContext(api="cuda").device_info.name and compare it with nvidia-smi -L on the reported RTX 4090 Laptop GPU. Determine how the device is classified and define the result so the actual GPU name is not misleadingly reported as L4; verify the corrected output against this reproduction.