riscv: KVM: Fix hart suspend status check

riscv: KVM: Fix hart suspend status check

"Not stopped" means started or suspended so we need to check for
a single state in order to have a chance to check for each state.
Also, we need to use target_vcpu when checking for the suspend
state.

Fixes: 763c8bed8c05 ("RISC-V: KVM: Implement SBI HSM suspend call")
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20250217084506.18763-8-ajones@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>