drivers/serial native: Replace native_posix with native_sim in comments

In the kconfig descriptions and the links to documents
replace native_posix with native_sim, or a generally
applicable description.

Signed-off-by: Alberto Escolar Piedras <[email protected]>

Author: aescolar

drivers/serial/Kconfig.native_posix

@@ -1,14 +1,14 @@
 # SPDX-License-Identifier: Apache-2.0
 
 config UART_NATIVE_POSIX
-	bool "UART driver for native_posix"
+	bool "UART driver for native_sim/posix"
 	default y
 	depends on DT_HAS_ZEPHYR_NATIVE_POSIX_UART_ENABLED
 	select SERIAL_HAS_DRIVER
 	help
 	  This enables a UART driver for the POSIX ARCH with up to 2 UARTs.
 	  For the first UART port, the driver can be configured
-	  to either connect to the terminal from which native_posix was run, or into
+	  to either connect to the terminal from which the executable was run, or into
 	  one dedicated pseudoterminal for that UART.
 
 if UART_NATIVE_POSIX
@@ -22,14 +22,14 @@ config NATIVE_UART_0_ON_OWN_PTY
 	help
 	  Connect this UART to its own pseudoterminal. This is the preferred
 	  option for users who want to use Zephyr's shell.
-	  Moreover this option does not conflict with any other native_posix
-	  backend which may use the calling shell standard input/output.
+	  Moreover this option does not conflict with any other native
+	  backend which may use the invoking shell standard input/output.
 
 config NATIVE_UART_0_ON_STDINOUT
 	bool "Connect the UART to the invoking shell stdin/stdout"
 	help
 	  Connect this UART to the stdin & stdout of the calling shell/terminal
-	  which invoked the native_posix executable. This is good enough for
+	  which invoked the native executable. This is good enough for
 	  automated testing, or when feeding from a file/pipe.
 	  Note that other, non UART messages, will also be printed to the
 	  terminal.
@@ -60,7 +60,7 @@ config NATIVE_UART_AUTOATTACH_DEFAULT_CMD
 	string "Default command to attach the UART to a new terminal"
 	default "xterm -e screen %s &"
 	help
-	  If the native_posix executable is called with the --attach_uart
+	  If the native executable is called with the --attach_uart
 	  command line option, this will be the default command which will be
 	  run to attach a new terminal to the 1st UART.
 	  Note that this command must have one, and only one, '%s' as

drivers/serial/uart_native_tty.c

@@ -6,9 +6,9 @@
  * command line options or at runtime.
  *
  * To learn more see Native TTY section at:
- * https://docs.zephyrproject.org/latest/boards/posix/native_posix/doc/index.html
+ * https://docs.zephyrproject.org/latest/boards/posix/native_sim/doc/index.html
  * or
- * ${ZEPHYR_BASE}/boards/posix/native_posix/doc/index.rst
+ * ${ZEPHYR_BASE}/boards/posix/native_sim/doc/index.rst
  *
  * Copyright (c) 2023 Marko Sagadin
  * SPDX-License-Identifier: Apache-2.0