Rename arch_nshinitialize() to board_app_initialize()

nshlib/Kconfig

@@ -798,9 +798,10 @@ endmenu # USB Device Trace Support
 config NSH_ARCHINIT
 	bool "Have architecture-specific initialization"
 	default n
+	select LIB_BOARDCTL
 	---help---
 		Set if your board provides architecture specific initialization
-		via the board-specific function nsh_archinitialize().  This
+		via the board-interface function boardctl().  The boardctl()
 		function will be called early in NSH initialization to allow
 		board logic to do such things as configure MMC/SD slots.
 

nshlib/README.txt

@@ -1258,9 +1258,9 @@ NSH-Specific Configuration Settings
 
   * CONFIG_NSH_ARCHINIT
       Set if your board provides architecture specific initialization
-      via the board-specific function nsh_archinitialize().  This
-      function will be called early in NSH initialization to allow
-      board logic to do such things as configure MMC/SD slots.
+      via the board-interface function boardctl().  This function will
+      be called early in NSH initialization to allow board logic to
+      do such things as configure MMC/SD slots.
 
   If Telnet is selected for the NSH console, then we must configure
   the resources used by the Telnet daemon and by the Telnet clients.

nshlib/nsh.h

@@ -773,9 +773,9 @@ int nsh_loginscript(FAR struct nsh_vtbl_s *vtbl);
 /* Architecture-specific initialization */
 
 #ifdef CONFIG_NSH_ARCHINIT
-int nsh_archinitialize(void);
+int board_app_initialize(void);
 #else
-#  define nsh_archinitialize() (-ENOSYS)
+#  define board_app_initialize() (-ENOSYS)
 #endif
 
 #ifdef CONFIG_NSH_ARCHMAC

nshlib/nsh_init.c

@@ -95,7 +95,7 @@ void nsh_initialize(void)
 
   /* Perform architecture-specific initialization (if available) */
 
-  (void)nsh_archinitialize();
+  (void)board_app_initialize();
 
   /* Bring up the network */