[Issue]: [Documentation] Document gfx908 support

[IMbackK]

Problem Description

Since 938900a has landed git hipblaslt supports gfx908, but this is not documented in the readme.

Side Note: the maximum rocm version that can be specified in in the drop down when repoting is severly out of date as it offers maximally rocm 5.7

Operating System

Any

CPU

N/A

GPU

AMD Instinct MI100

Other

No response

ROCm Version

ROCm 5.7.1

ROCm Component

No response

Steps to Reproduce

No response

(Optional for Linux users) Output of /opt/rocm/bin/rocminfo --support

No response

Additional Information

No response

[ppanchad-amd]

Hi @IMbackK. Internal ticket has been created to fix this issue. Thanks!