Bitbucket Issue 5, apps build system: The previous patch wasn't complete, it was just idea how to resolve issue.  Please, find attached issue5.patch to resolve it. It can be applied on top current apps/master. From Artur Mądrzak.

Issue 5:  I found an unexpected behavior in apps/ configuration generation. Adding external symbolic link in apps/ directory and using Make.defs for Kconfig generation, Kconfig file has a wrong path in the source argument. It contains original dir path outside of the source tree instead path to sub-directory in apps/.

The problem is connected with make/system symbolic link path resolution.  Corrected by a patch submitted by Artur Mądrzak with Issue 5.

wireless/ieee802154: Brings closer to NuttX Coding Style

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

wireless/ieee802154: Restructures i8sak app and adds blaster functionality

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

NSH wireless setup: Move call to nsh_associate().  It should be possible to associate with an AP when DHCPC is disabled.

wireless/ieee802154: Adds sniffer back to I8SAK app

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

Add platform files for nucleo-l452re and nucleo-l496zg

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

wireless/wapi: wpa_driver_wext_associate() now accepts a configuration parameter that can be used to specify the wireless properties.  nshlib:  NSH now has configuration options to select the wireless properties.  It builds the configuration structure and passes this to wpa_driver_wext_associate() so that it will setwork the network as configured.

Move wireless/wext into wireless/wapi/src.  Update some naming for better follow the NuttX coding style.

wireless/ieee802154: msdu_length in meta data converted to a seperate length argument

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

wireless/ieee802154:  Removes libradio to coincide with removal of ioctl with radio

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

Moves all functionality from libradio to libmac

netutils/dhcpc:  Make the network device name a configuration option.  Was hardcoded to eth0 but may, instead, need to be wlan0