Squash merge of cfreehil/amd-temp-gfx90a onto amd-staging.

Includes some workarounds and HMM.
Conflicts:
	opensrc/hsa-runtime/core/runtime/amd_topology.cpp
	opensrc/hsa-runtime/core/util/flag.h

Change-Id: I22976f07964a43dbb228a6231777dbd599112b8d

runtime/hsa-runtime/libamdhsacode/amd_hsa_code.cpp

@@ -568,6 +568,7 @@ namespace code {
       case ELF::EF_AMDGPU_MACH_AMDGCN_GFX906:  name = "gfx906";  xnack_supported = true;  sramecc_supported = true;  break;
       case ELF::EF_AMDGPU_MACH_AMDGCN_GFX908:  name = "gfx908";  xnack_supported = true;  sramecc_supported = true;  break;
       case ELF::EF_AMDGPU_MACH_AMDGCN_GFX909:  name = "gfx909";  xnack_supported = true;  sramecc_supported = false; break;
+      case ELF::EF_AMDGPU_MACH_AMDGCN_GFX90A:  name = "gfx90a";  xnack_supported = true;  sramecc_supported = true;  break;
       case ELF::EF_AMDGPU_MACH_AMDGCN_GFX90C:  name = "gfx90c";  xnack_supported = true;  sramecc_supported = false; break;
       case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1010: name = "gfx1010"; xnack_supported = true;  sramecc_supported = false; break;
       case ELF::EF_AMDGPU_MACH_AMDGCN_GFX1011: name = "gfx1011"; xnack_supported = true;  sramecc_supported = false; break;