Revert "Reapply "Fix default AMD arch that is not a default""

This reverts commit 7b0021a.

Author: OliverRietmann

GPU/GPUTracking/Standalone/cmake/config.cmake

@@ -31,7 +31,7 @@ set(GPUCA_BUILD_DEBUG_SANITIZE 0)
 set(GPUCA_DETERMINISTIC_MODE 0)             # OFF / NO_FAST_MATH / OPTO2 / GPU / WHOLEO2
 #set(GPUCA_CUDA_GCCBIN c++-14)
 #set(GPUCA_OPENCL_CLANGBIN clang-20)
-set(HIP_AMDGPUTARGET "default" CACHE STRING "HIP_AMDGPUTARGET")      # gfx906
+set(HIP_AMDGPUTARGET "default" CACHE STRING "HIP_AMDGPUTARGET")      # "gfx906;gfx908;gfx90a"
 set(CUDA_COMPUTETARGET "default" CACHE STRING "CUDA_COMPUTETARGET")  # 86 89
 #set(GPUCA_CUDA_COMPILE_MODE perkernel)     # onefile / perkernel / rtc
 #set(GPUCA_HIP_COMPILE_MODE perkernel)

dependencies/FindO2GPU.cmake

@@ -36,7 +36,7 @@ if(CUDA_COMPUTETARGET AND CUDA_COMPUTETARGET STREQUAL "default")
 endif()
 
 if(HIP_AMDGPUTARGET AND HIP_AMDGPUTARGET STREQUAL "default")
-  set(HIP_AMDGPUTARGET gfx906)
+  set(HIP_AMDGPUTARGET gfx906;gfx908)
 endif()
 
 function(set_target_cuda_arch target)