cmd/compile/internal/ssa: fix typo in LOONG64Ops.go comment

Change-Id: I680bae7fc1a26c1f249ab833fa8d41e9387b2d50
Reviewed-on: https://go-review.googlesource.com/c/go/+/693456
Reviewed-by: Dmitri Shuralyov <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Mark Freeman <[email protected]>
Reviewed-by: abner chenc <[email protected]>

Author: sophie-zhao

src/cmd/compile/internal/ssa/_gen/LOONG64Ops.go

@@ -589,7 +589,7 @@ func init() {
 		{name: "FPT", controls: 1},  // FP flag is true
 		{name: "FPF", controls: 1},  // FP flag is false
 		{name: "BEQ", controls: 2},  // controls[0] == controls[1]
-		{name: "BNE", controls: 2},  // controls[0] == controls[1]
+		{name: "BNE", controls: 2},  // controls[0] != controls[1]
 		{name: "BGE", controls: 2},  // controls[0] >= controls[1]
 		{name: "BLT", controls: 2},  // controls[0] < controls[1]
 		{name: "BGEU", controls: 2}, // controls[0] >= controls[1], unsigned