drvers/sensor and include/nuttx/sensors: Add support to Bosch BMP180 barometer.  From Alan Carvalho de Assis.

STM32 F7 Ethernet:  Add cache operations to make sure we have data coherency when accessing all DMA-related data

gethostbyname() and gethostbyname_r() should be built even if there is no host file support.  From Sebastien Lorquet

Move definition of h_errno from lib_parsehostfile.c to lib_netdb.  h_errno should still be defined even if there is no host file support.  From  Sebastien Lorquet.

-Extend frequency range options to 180 MHz for STM32 ETH_MACMIIA_CR
-Fix a typo in a frequency range option in LPC43
-Only configure the PPS GPIO if the PTP protocol is enabled

From Sebastien Lorquet

Add CONFIG_NETDEV_LATEINIT that can be used to suppress calls to up_netinitialize() from early initialization