[llvm] [Hexagon] Provide a custom decoder for Y4_crswap10 (PR #153849)

[Alexey Karyakin via llvm-commits]

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@@ -3049,7 +3049,6 @@ class Enc_cf1927 : OpcodeHexagon {
 class Enc_d0fe02 : OpcodeHexagon {
   bits <5> Rxx32;
   let Inst{20-16} = Rxx32{4-0};
-  bits <0> sgp10;
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quic-akaryaki wrote:

Removing this zero-length field and converting `$sgp10` to `sgp1:0` in HexagonDepInstrInfo.td should be enough.

https://github.com/llvm/llvm-project/pull/153849