refactor(qemu-sbsa): rename function sip_svc_init() to something more meaningful

There is no relation between the name of function sip_svc_init() and
what it does.  As such rename it to something more appropriate and move
it to a header that make sense.

No change in functionality.

Change-Id: I7bd78b1fe70e2930c395ef0a097bfad3b1e55d3a
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

plat/qemu/common/qemu_bl31_setup.c

@@ -14,6 +14,9 @@
 #if ENABLE_RME
 #include <qemu_pas_def.h>
 #endif
+#ifdef PLAT_qemu_sbsa
+#include <sbsa_platform.h>
+#endif
 
 #include "qemu_private.h"
 
@@ -66,7 +69,7 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
 
 /* Platform names have to be lowercase. */
 #ifdef PLAT_qemu_sbsa
-	sip_svc_init();
+	sbsa_platform_init();
 #endif
 
 	/*

plat/qemu/common/qemu_private.h

@@ -18,9 +18,6 @@ unsigned int plat_qemu_calc_core_pos(u_register_t mpidr);
 const mmap_region_t *plat_qemu_get_mmap(void);
 
 void qemu_console_init(void);
-#ifdef PLAT_qemu_sbsa
-void sip_svc_init(void);
-#endif
 
 void plat_qemu_gic_init(void);
 void qemu_pwr_gic_on_finish(void);

plat/qemu/qemu_sbsa/include/sbsa_platform.h

@@ -43,4 +43,6 @@ struct qemu_platform_info {
 	struct platform_memory_data memory[PLAT_MAX_MEM_NODES];
 };
 
+void sbsa_platform_init(void);
+
 #endif /* SBSA_PLATFORM_H */

plat/qemu/qemu_sbsa/sbsa_sip_svc.c

@@ -297,7 +297,7 @@ void read_platform_version(void *dtb)
 	}
 }
 
-void sip_svc_init(void)
+void sbsa_platform_init(void)
 {
 	/* Read DeviceTree data before MMU is enabled */