[llvm] [AMDGPU] Do not bundle meta instructions with memops (PR #153533)

[Matt Arsenault via llvm-commits]

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@@ -114,7 +114,7 @@ body:             |
     $vgpr3 = DS_READ_B32_gfx9 $vgpr1, 0, 0, implicit $exec
 ...
 
-# Middle dbg_value should be bundled
+# Loads are not bundled due to middle deb_value
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arsenm wrote:

DBG_* instructions are not allowed to change codegen in any way 

https://github.com/llvm/llvm-project/pull/153533