refactor(cactus): use FFA_CONSOLE_LOG for debug logs

With the introduction of ffa_console_log abi, implementation-
defined debug logging is deprecated. Remove support for
SPM_DEBUG_LOG and use FFA_CONSOLE_LOG instead.

Also remove test for FFA_CONSOLE_LOG as it is now used as default
logger. Removing it cleans up test prints.

Signed-off-by: Kathleen Capella <kathleen.capella@arm.com>
Change-Id: Ibe02e14105aaa1658153ba35a5fc8e852ae3f955
diff --git a/spm/cactus/cactus_main.c b/spm/cactus/cactus_main.c
index 0518f1f..50219f3 100644
--- a/spm/cactus/cactus_main.c
+++ b/spm/cactus/cactus_main.c
@@ -295,7 +295,7 @@
 
 		cactus_print_boot_info(boot_info_header);
 	} else {
-		set_putc_impl(HVC_CALL_AS_STDOUT);
+		set_putc_impl(FFA_SVC_SMC_CALL_AS_STDOUT);
 	}
 
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