removed stray paren.

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

Merged in david_s5/nuttx-16/david_s5/stm32serial-dma-buffer-round-off-not-up-1494258804216 (pull request #357)

stm32:Serial DMA buffer round off not up

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

wireless/ieee802154: Completes basic receive functionality

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

wireless/ieee802154: MRF24J40: Finishes receive functionality, supports promicuous mode, and rxonidle attributes

STM32 TIM: Add method to get timer width.  Freerun timer: Use timer width to get the correct clock rollover point.

IEEE 802.15.4 network driver.  Remove support for multicast address filtering; doesn't work that way on an IEEE 802.15.4 network

stm32: serial Allow configuring Rx DMA buffer size

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

Reworks data_ind allocation to include IOB allocation/deallocation. Hides private data.

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

Upstream kinetis

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

wireless/ieee802154: Reworks data_ind allocation to include IOB allocation/deallocation. Hides private data.

wireless/ieee802154: Removes msdu_length from meta-data since it is intrinsically in the IOB

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

Upstream kinetis i2c pin def

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

   The output structure of the GPIO for I2C needs to be open
   drain.  When left at the default, one can observe on a scope
   the slave contending with the push-pull during the ACK

   The output structure of the GPIO for I2C needs to be open
   drain.  When left at the default, one can observe on a scope
   the slave contending with the push-pull during the ACK

   The output structure of the GPIO for I2C needs to be open
   drain.  When left at the default, one can observe on a scope
   the slave contending with the push-pull during the ACK