[libgloss] * configure.in: Add rl78. * configure: Regenerate. * rl78: New directory

[newlib]
* configure.host: Add rl78.
* libc/include/machine/ieeefp.h: Add rl78 support.
* libc/include/machine/setjmp.h: Add rl78 support.
* libc/machine/configure.in: Add rl78.
* libc/machine/rl78: New directory.
Initial commit
* libc/machine/rl78/setjmp.S: Convert from CPP macros to GAS macros, to avoid dependence on the line separation character.

* rl78/crt0.S (_interrupt_vector_table): Convert from CPP macros
to GAS macros, to avoid dependence on the line separation
character.
SLIP-radio support for the Nooliberry (RF230 radio)
SLIP-radio support for the Econotag
Restore CC2420 as default in slip-radio
Find and use latest installed GNURL78 toolchain automatically.
Add reset action to terminal target of Makefile. If reset signal is routed to MCU and reset action is not requested, reset signal will be held low.
In GNURL78 v13.01 __far keyword is fixed. Now it is possible to use far pointers to flash area.
Added the PmodRF3 demo for Renesas RL78G14 board.
Added the PmodRF3 demo for Renesas RL78G14 board.
Added 3 more functions.
Added the TIME driver for RL78G14.
In stm32w_flasher replaced hal-* calls with usage of pyudev.
Added support for STM32w boards MB950 and MB951 revision B.
cc2538: spi: Do not call SPI_WAITFOREORx() at end of init

If the SSI has never been used and spi_init() is called, then the SSI receive
FIFO is empty and remains so, so calling SPI_WAITFOREORx() at the end of
spi_init() waits endlessly for SSI_SR.RNE to be set. Hence, this call must be
removed in order to avoid a deadlock.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
cc2538: spi: Include spi-arch.h before dev/spi.h

spi-arch.h configures dev/spi.h, so it must be #included first. Luckily, this
mistake did not have any consequence here, but fix it in order to avoid possible
future issues.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
In stm32w_flasher added check for pyudev and updated ubuntu package instructions.
cc2538: spi: Add format configuration options

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
cc2538: spi: Add enable and disable functions

This makes it possible to reduce the power consumption when the SPI is unused.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>