ram: stm32mp1: migrate trace to dev or log macro

Define LOG_CATEGORY, use dev_ macro when it is possible
and migrate other trace to log_ macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/drivers/ram/stm32mp1/stm32mp1_interactive.c b/drivers/ram/stm32mp1/stm32mp1_interactive.c
index 5a5d067..e45a248 100644
--- a/drivers/ram/stm32mp1/stm32mp1_interactive.c
+++ b/drivers/ram/stm32mp1/stm32mp1_interactive.c
@@ -3,6 +3,8 @@
  * Copyright (C) 2019, STMicroelectronics - All Rights Reserved
  */
 
+#define LOG_CATEGORY UCLASS_RAM
+
 #include <common.h>
 #include <command.h>
 #include <console.h>
@@ -404,7 +406,7 @@
 #endif
 	}
 
-	debug("** step %d ** %s / %d\n", step, step_str[step], next_step);
+	log_debug("** step %d ** %s / %d\n", step, step_str[step], next_step);
 
 	if (next_step < 0)
 		return false;