firmware: rockchip sip: add psci_smp_available check

We shouldn't call SMC if PSCI is not enabled.

Change-Id: I362bea4ecb481b2eadcf6c481f016050e386eee0
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

Author: JosephChen2017

drivers/firmware/rockchip_sip.c

@@ -15,6 +15,9 @@
 #include <linux/io.h>
 #include <linux/rockchip/rockchip_sip.h>
 #include <asm/cputype.h>
+#ifdef CONFIG_ARM
+#include <asm/psci.h>
+#endif
 #include <asm/smp_plat.h>
 #include <uapi/linux/psci.h>
 #include <linux/ptrace.h>
@@ -308,6 +311,9 @@ static __init int sip_implement_version_init(void)
 {
 	struct arm_smccc_res res;
 
+	if (!psci_smp_available())
+		return 0;
+
 	res = __invoke_sip_fn_smc(SIP_SIP_VERSION, SIP_IMPLEMENT_V2,
 				  SECURE_REG_WR, 0);
 	if (IS_SIP_ERROR(res.a0))