plat/synquacer: enable SCMI support

Enable the SCMI protocol support in SynQuacer platform.
Aside from power domain, system power and apcore management protocol,
this commit adds the vendor specific protocol(0x80).
This vendor specific protocol is used to get the dram mapping information
from SCP.

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
diff --git a/plat/socionext/synquacer/drivers/scpi/sq_scpi.h b/plat/socionext/synquacer/drivers/scpi/sq_scpi.h
index 38cc19e..eb6ce5c 100644
--- a/plat/socionext/synquacer/drivers/scpi/sq_scpi.h
+++ b/plat/socionext/synquacer/drivers/scpi/sq_scpi.h
@@ -78,5 +78,6 @@
 					scpi_power_state_t cluster_state,
 					scpi_power_state_t css_state);
 uint32_t scpi_sys_power_state(scpi_system_state_t system_state);
+uint32_t scpi_get_draminfo(struct draminfo *info);
 
 #endif /* SQ_SCPI_H */