Renamed stateset files to correspond with res tof cspi

diff --git a/cspi/stateset.h b/cspi/spi-stateset.h
similarity index 100%
rename from cspi/stateset.h
rename to cspi/spi-stateset.h

diff --git a/cspi/stateset.c b/cspi/spi_stateset.c
similarity index 100%
rename from cspi/stateset.c
rename to cspi/spi_stateset.c