This commit eliminates the BOARDIOC_TSCTEST_SETUP command.

Squashed commit of the following:

    configs:  Each board now initializes the touchscreen controller as a normal part of its board bring-up.  board_tsc_setup() is gone; the touchscreen controller is now treated like any other on-board device.
    Remove all support for BOARDIOC_TSCTEST_SETUP
    Move prototype for board_tsc_setup() from include/nuttx/board.h to individual board header files.

include/nuttx/board.h

@@ -285,33 +285,6 @@ int board_composite_initialize(int port);
 FAR void *board_composite_connect(int port, int configid);
 #endif
 
-/****************************************************************************
- * Name: board_tsc_setup
- *
- * Description:
- *   Each board that supports a touchscreen device must provide this function.
- *   This function is called by application-specific, setup logic to
- *   configure the touchscreen device.  This function will register the driver
- *   as /dev/inputN where N is the minor device number.
- *
- *   This is an internal OS interface but may be invoked indirectly from
- *   application-level touchscreen testing logic (perhaps by
- *   apps/examples/touchscreen).  If CONFIG_LIB_BOARDCTL=y and
- *   CONFIG_BOARDCTL_TSCTEST=y, then this functions will be invoked via the
- *   (non-standard) boardctl() interface using the BOARDIOC_TSCTEST_SETUP
- *   command.
- *
- * Input Parameters:
- *   minor   - The input device minor number
- *
- * Returned Value:
- *   Zero is returned on success.  Otherwise, a negated errno value is
- *   returned to indicate the nature of the failure.
- *
- ****************************************************************************/
-
-int board_tsc_setup(int minor);
-
 /****************************************************************************
  * Name: board_graphics_setup
  *

include/sys/boardctl.h

@@ -114,12 +114,6 @@
  * ARG:           None
  * CONFIGURATION: CONFIG_NX
  * DEPENDENCIES:  Base graphics logic provides nx_start()
- *
- * CMD:           BOARDIOC_TSCTEST_SETUP
- * DESCRIPTION:   Touchscreen controller test configuration
- * ARG:           Touch controller device minor number
- * CONFIGURATION: CONFIG_LIB_BOARDCTL && CONFIG_BOARDCTL_TSCTEST
- * DEPENDENCIES:  Board logic must provide board_tsc_setup()
  */
 
 #define BOARDIOC_INIT              _BOARDIOC(0x0001)
@@ -130,7 +124,6 @@
 #define BOARDIOC_OS_SYMTAB         _BOARDIOC(0x0006)
 #define BOARDIOC_USBDEV_CONTROL    _BOARDIOC(0x0007)
 #define BOARDIOC_NX_START          _BOARDIOC(0x0008)
-#define BOARDIOC_TSCTEST_SETUP     _BOARDIOC(0x0009)
 
 /* If CONFIG_BOARDCTL_IOCTL=y, then board-specific commands will be support.
  * In this case, all commands not recognized by boardctl() will be forwarded
@@ -139,7 +132,7 @@
  * User defined board commands may begin with this value:
  */
 
-#define BOARDIOC_USER              _BOARDIOC(0x000a)
+#define BOARDIOC_USER              _BOARDIOC(0x0009)
 
 /****************************************************************************
  * Public Type Definitions