forked from Mirrors/opensbi

We found the mstatus.FS status is not set correctly after the SET_F64_REG() and SET_F32_REG(). We should set mstatus.FS dirty after we emulate the FPU instructions. Co-developed-by: Roy Lin <roy.lin@sifive.com> Signed-off-by: Roy Lin <roy.lin@sifive.com> Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org>