[llvm] [AMDGPU] Fix backward compatibility kernarg preload prolog base offset (PR #201355)

[Matt Arsenault via llvm-commits]

================
@@ -57,8 +57,8 @@ define amdgpu_kernel void @barrier_release(<4 x i32> inreg %rsrc,
 ;
 ; GFX90A-TGSPLIT-LABEL: barrier_release:
 ; GFX90A-TGSPLIT:       ; %bb.1:
-; GFX90A-TGSPLIT-NEXT:    s_load_dwordx4 s[8:11], s[4:5], 0x0
-; GFX90A-TGSPLIT-NEXT:    s_load_dwordx2 s[12:13], s[4:5], 0x10
+; GFX90A-TGSPLIT-NEXT:    s_load_dwordx4 s[8:11], s[4:5], 0x24
----------------
arsenm wrote:

Probably would switch this test to be amdhsa 

https://github.com/llvm/llvm-project/pull/201355