1. Add missing conditional logic in include/sys/syscall_lookup.h
2. CONFIG_NPTHREAD_KEYS removed from code but was still in sched/Kconfig
3. Refresh all configurations affected by PR 1007
4. syscall/syscall_funclookup.c needs to include nuttx/tls.h
1. Move pthread-specific data files from sched/pthread/ to libs/libc/pthread.
2. Remove pthread-specific data functions from syscalls.
3. Implement tls_alloc() and tls_free() with system calls.
4. Reimplement pthread_key_create() and pthread_key_free() using tls_alloc() and tls_free().
5. Reimplement pthread_set_specific() and pthread_get_specicif() using tls_set_value() and tls_get_value()
arch/arm/src/s32k1xx/s32k1xx_lowputc.c: Fix a typo that prevented LPUART1 from working.
arch/arm/src/s32k1xx/s32k1xx_periphclocks.c and related files: Fix yet another case of confusion between pre-decremented and non-decremented divider values. Enforce the rule that dividers are not decremented until the moment they are written into registers.
arch/arm/src/s32k1xx/s32k1xx_clockconfig.c: Fix another problem related to whether a divider is pre-decremented or not. The answer must be the divder values are never pre-decremented. They are decremented just before being written to hardware.
arch/arm/src/s32k1xx/s32k1xx_clockconfig.c: Clean up some bad conditional logic. Precedence of operators problem.
boards/arm/s32k1xx/s32k118evb: Add support for execution out of SRAM. This is helpful for bringup when you want to avoid putting a lethal image in FLASH.
arch/arm/src/s32k1xx/s32k1xx_clockconfig.h: Remove crystal frequency, it is not used.
arch/arm/src/s32k1xx/s32k1xx_wdog.h: Fix a typo in a register name.i
boards/arm/s32k1xx/s32k*evb/configs/nsh/defconfig: Create Motorola SREC output format.
Squashed commit of the following:
s32k1xx/s32k146evb/scripts/flash.ld: Update the linker script for the S32K146.
boards/: Hook the S32K146EVB into the configuration and build system.
s32k146_clockconfig.c: Add S32K146 clock configuration.
boards/arm/s32k1xx/s32k146evb/src/s32k146_periphclocks.c: Update peripheral clocking for the S32K146.
arm/s32k1xx/s32k146evb: Initial support fo S32K146EVB. Starting point is just the S32K118EVB with name changes.
Squashed commit of the following:
boards/arm/s32k1xx/s32k118evb/configs/nsh: Add a basic NSH configuration.
boards/arm/s32k1xx/s32k118evb/scripts: Add linker scripts and Make.defs.
configs/: Hook the S32K118EVB board into the configuration system.
boards/arm/s32k1xx/s32k118evb: Add initial support for the NXP S32K118EVB.