rocm.Dockerfile: added gfx1200,gfx1201 architectures to support AMD Radeon RX 9000...

rocm.Dockerfile: added gfx1200,gfx1201 architectures to support  AMD Radeon RX 9000 series (#15994)

* rocm.Dockerfile: added gfx1200,gfx1201 architectures to support  AMD Radeon RX 9000 series

https://rocm.docs.amd.com/projects/install-on-linux/en/docs-6.4.1/reference/system-requirements.html#rdna-os
states the Radeon RX 9000 series is supported support from Ubuntu 24.04.2, and the dockerfile is using 24.04 which is ROCm 6.4.

This fixed the `ROCm error: invalid device function` I was getting when trying to use the rocm container.