ARC: [Review] Multi-platform image #8: platform registers SMP callbacks

Platforms export their SMP callbacks by populating arc_smp_ops.
The population itself needs to be done pretty early, from init_early
callback.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>

arch/arc/plat-arcfpga/include/plat/smp.h

@@ -111,6 +111,7 @@ extern void idu_irq_set_tgtcpu(uint8_t irq, uint32_t mask);
 extern void idu_irq_set_mode(uint8_t irq, uint8_t dest_mode, uint8_t trig_mode);
 
 extern void iss_model_init_smp(unsigned int cpu);
+extern void iss_model_init_early_smp(void);
 
 #endif	/* CONFIG_SMP */