[PATCH v3] Convert the RX target to make use of target descriptions.

[Eli Zaretskii]

> From: Yoshinori Sato <ysato@users.sourceforge.jp>
> Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
> Date: Thu, 22 Aug 2019 23:30:26 +0900
> 
> gdb/ChangeLog
> 
> 2019-08-22  Yoshinori Sato <ysato@users.sourceforge.jp>
> 
> 	* gdb/rx-tdep.c (rx_register_names): New.
> 	(rx_register_name): delete.
> 	(rx_psw_type): delete.
> 	(rx_fpsw_type): delete.
> 	(rx_register_type): delete.
> 	(rx_gdbarch_init): Convert target-descriptions.
> 	(_initialize_rx_tdep): Add initialize_tdesc_rx.
> 	* gdb/features/Makefile: Add rx.xml.
> 	* gdb/features/rx.xml: New.
> 	* gdb/features/rx.c: Likewise.
> 	* gdb/NEWS: Mention target description support.
> 
> gdb/doc/ChangeLog:
> 
> 2019-08-22  Yoshinori Sato <ysato@users.sourceforge.jp>
> 
> 	* gdb.texinfo (Standard Target Features): Add RX Features sub-section.

This is OK for the documentation part.

Thanks.