AMDGPU/NFC: Replace EF_AMDGPU_MACH_AMDGCN_RESERVED_0X3E with EF_AMDGPU_MACH_AMDGCN_GFX1034

[t-tye]

This needs AMDGPUUsage to also be updated that these values are now reserved.

[t-tye]

In D102708#2767022, @t-tye wrote:

This needs AMDGPUUsage to also be updated that these values are now reserved.

I misread the review and now see AMDGPUUsage is already up to date so discard this comment.

llvm/include/llvm/BinaryFormat/ELF.h

enum : unsigned {
   EF_AMDGPU_MACH_AMDGCN_GFX90C        = 0x032,
   EF_AMDGPU_MACH_AMDGCN_GFX1010       = 0x033,
   EF_AMDGPU_MACH_AMDGCN_GFX1011       = 0x034,
   EF_AMDGPU_MACH_AMDGCN_GFX1012       = 0x035,
   EF_AMDGPU_MACH_AMDGCN_GFX1030       = 0x036,
   EF_AMDGPU_MACH_AMDGCN_GFX1031       = 0x037,
   EF_AMDGPU_MACH_AMDGCN_GFX1032       = 0x038,
   EF_AMDGPU_MACH_AMDGCN_GFX1033       = 0x039,
-  EF_AMDGPU_MACH_AMDGCN_GFX1034       = 0x03e,
   EF_AMDGPU_MACH_AMDGCN_GFX602        = 0x03a,
   EF_AMDGPU_MACH_AMDGCN_GFX705        = 0x03b,
   EF_AMDGPU_MACH_AMDGCN_GFX805        = 0x03c,
   EF_AMDGPU_MACH_AMDGCN_RESERVED_0X3D = 0x03d,
-  EF_AMDGPU_MACH_AMDGCN_RESERVED_0X3E = 0x03e,
+  EF_AMDGPU_MACH_AMDGCN_GFX1034       = 0x03e,
   EF_AMDGPU_MACH_AMDGCN_GFX90A        = 0x03f,
   EF_AMDGPU_MACH_AMDGCN_RESERVED_0X40 = 0x040,
   EF_AMDGPU_MACH_AMDGCN_RESERVED_0X41 = 0x041,
 
   // First/last AMDGCN-based processors.
   EF_AMDGPU_MACH_AMDGCN_FIRST = EF_AMDGPU_MACH_AMDGCN_GFX600,
   EF_AMDGPU_MACH_AMDGCN_LAST = EF_AMDGPU_MACH_AMDGCN_GFX90A,