sapi: Error case for CONFIGURE_UNLIMITED_OBJECTS
sapi: Fix CONFIGURE_UNLIMITED_OBJECTS

POSIX keys and key value pairs support now the unlimited option.
doc: rtems_get_processor_count()
doc: rtems_get_current_processor()
doc: rtems_task_get_affinity()
doc: rtems_task_set_affinity()
doc: rtems_scheduler_ident()
doc: rtems_scheduler_get_processor_set()
doc: rtems_task_get_scheduler()
doc: rtems_task_set_scheduler()
doc: Typo
score: Clarify TLS support