syslog/ramlog: Fix error: argument to 'section' attribute is not valid

mach-o section specifier requires a segment and section separated by a comma

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

drivers/syslog/Kconfig

@@ -244,6 +244,7 @@ if RAMLOG_SYSLOG
 config RAMLOG_BUFFER_SECTION
 	string "The section where ramlog buffer is located"
 	default ".bss"
+	depends on !ARCH_SIM
 	---help---
 		The section where ramlog buffer is located.
 		The section shall not be initialized on system boot.

drivers/syslog/ramlog.c

@@ -125,7 +125,10 @@ static const struct file_operations g_ramlogfops =
 
 #ifdef CONFIG_RAMLOG_SYSLOG
 static char g_sysbuffer[CONFIG_RAMLOG_BUFSIZE]
-                               locate_data(CONFIG_RAMLOG_BUFFER_SECTION);
+#ifdef CONFIG_RAMLOG_BUFFER_SECTION
+                               locate_data(CONFIG_RAMLOG_BUFFER_SECTION)
+#endif
+;
 
 /* This is the device structure for the console or syslogging function.  It
  * must be statically initialized because the RAMLOG ramlog_putc function