Spirit: Network driver needs to setup IP address based on configured node address.  If no node address is provided, then it will use a default.  Also upate a README.

Spirit:  Add more debug output.  Make sure device is in READY state after reset and before changing to STANDBY.

NX PR

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

stm32f746g-disco:  Make the initialization logic identical to the standard way that is done for all other board.

STM32F7:  Fix for coding standard violations that came in with cd3ca114 -- missed a file last time

STM32F7:  Fix for coding standard violations that came in with cd3ca114

IoT Board/Spirit:  Fix a few issues that interfered with testing.  Move console to the VCOM port (USART) for all configurations.  Rename the spirit-mac configuration to spirit-6lowpan.  Add lots of debug output the spirit network driver.

Bug fixes for STM32F769

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

STM32_RCC_DCKCFGR2 has nothing to do with PLLI2S; PLLI2S is not dependent on LTDC, instead on SAICLK1/2 generated from PLLI2S

network: Move USRSOCK specific code from from inet_sockif to usrsock_sockif:  Add file missed in last commit

STM32L4 PWR: correct PWR_SR2 REGLPS and REGLPF bits, add port I registers.  Also remove duplicate section from Kconfig