global: Migrate CONFIG_MALLOC_F_ADDR to CFG

Perform a simple rename of CONFIG_MALLOC_F_ADDR to CFG_MALLOC_F_ADDR

Signed-off-by: Tom Rini <trini@konsulko.com>

arch/sandbox/cpu/start.c

@@ -535,7 +535,7 @@ int sandbox_main(int argc, char *argv[])
 	}
 
 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
-	gd->malloc_base = CONFIG_MALLOC_F_ADDR;
+	gd->malloc_base = CFG_MALLOC_F_ADDR;
 #endif
 #if CONFIG_IS_ENABLED(LOG)
 	gd->default_log_level = state->default_log_level;