NSH: Fix some warnings about integer/pointer casts of different sizes (probably only effects 64-bit simulation)

Causes build problems and does not follow the coding style.

This reverts commit 87fe31f8.

ieee802154: Removes ieee802154.h references

Approved-by: Gregory Nutt <gnutt@nuttx.org>

ieee802154/coord: Updates logic to reflect changes in nuttx 802154 code

Approved-by: Gregory Nutt <gnutt@nuttx.org>

Merged in david_s5/apps-1/david_s5/appsmm-removed-extraneous-comment-from-m-1490711722259 (pull request #71)

apps/mm removed extraneous comment from Makefile

Approved-by: Gregory Nutt <gnutt@nuttx.org>

ieee802154: Updated to match nuttx ieee802154 changes

Approved-by: Gregory Nutt <gnutt@nuttx.org>

built-in libc defect workaround: replace '%6.6u' format with an equivalent '%06u'

Approved-by: Gregory Nutt <gnutt@nuttx.org>

Adds a test program for the XBox One controller driver (xbc_test).

Approved-by: Gregory Nutt <gnutt@nuttx.org>

netutils/netlib:  Add one wireless IOCTL wrapper.  For now, this is just a test to be sure that the wireless IOCTL definitions are in place.

apps/examples/usbterm:  Removed because it is not very useful and because it can be configured to use an illegal call into the OS.

apps/examples/hidkbd:  Remove call to arch_usbhost_initialize().  That is violation of the OS interfacing rules and will no longer be supported.  USB host should be initialized as part of the normal board bring-up logic as with any other devices and should not involve illegal calls from applications into the OS.