style: change type of arg for boot info

Changed the type of argument to receive the
boot information in the main of the standalone SP.

Change-Id: If9e48ebcf2eea12811f511759cef5f6b727418c4
Signed-off-by: J-Alves <joao.alves@arm.com>
diff --git a/test/hftest/standalone_main_secure.c b/test/hftest/standalone_main_secure.c
index 2b01050..7ec7c74 100644
--- a/test/hftest/standalone_main_secure.c
+++ b/test/hftest/standalone_main_secure.c
@@ -35,7 +35,7 @@
 	}
 }
 
-void kmain(void* boot_info_blob)
+void kmain(struct ffa_boot_info_header* boot_info_blob)
 {
 	/* Dummy fdt. It is not really used */
 	struct fdt fdt;