TM4C129X Timer:  Add some missing addresses and some of the register bit definitions.  Still incomplete

TM4C129X Timer:  Update addresses in the timer register definitions file.  Still missing bit field definitions

DK-TM42129X: Support for the TMP100 temperature sensor is enabled by default in the NSH configuration

Tiva IRQs:  Fix IRQ control logic; was limited to only 64 IRQs.  That is a problem for higher numbered IRQs on many platforms

Tiva PHY Interrupts: Need to read the PHY interrupt status register in order to clear the pending PHY interrupt

Tiva Ethernet: Removed logic that holds the PHY and re-ordered some reset logic.  Can not ping the DK

Tiva serial:  Add volatile to fix a wait loop that was not waiting; CR really should preced LF in CR-LF expansion

net/tcp/tcp_conn.c:  Fix a logic error when CONFIG_NETDEV_MULTINIC is selected: net_unlock(flags) will be called will an uninitialized variable (2015-01-03).

Some boards do not have the external 32khz oscillator installed, for those boards we must fallback to the crummy to the crummy internal RC clock.  Turn on by defining CONFIG_RTC_LSICLOCK.

From Kevin Hester <kevinh@geeksville.com> via Lorenz Meier.

There were some changes which broke my NuttX-Build. With these two patches it builds again.  From Manuel Stühn