target/riscv: fsd/fsw doesn't dirty FP state

Signed-off-by: ShihPo Hung <shihpo.hung@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
(cherry picked from commit a59796eb6d)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

target/riscv/insn_trans/trans_rvd.inc.c

@@ -43,7 +43,6 @@ static bool trans_fsd(DisasContext *ctx, arg_fsd *a)
 
     tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], t0, ctx->mem_idx, MO_TEQ);
 
-    mark_fs_dirty(ctx);
     tcg_temp_free(t0);
     return true;
 }

target/riscv/insn_trans/trans_rvf.inc.c

@@ -52,7 +52,6 @@ static bool trans_fsw(DisasContext *ctx, arg_fsw *a)
     tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], t0, ctx->mem_idx, MO_TEUL);
 
     tcg_temp_free(t0);
-    mark_fs_dirty(ctx);
     return true;
 }