qti/sc7180: Do shutdown handling outside qtiseclib

With an open source SPMI driver we can now remove qtiseclib involvement
in reset and shutdown handling by setting the required registers
directly.

Change-Id: I6bf1db15734048df583daa2a4ee98701c6ece621
Signed-off-by: Julius Werner <jwerner@chromium.org>
diff --git a/plat/qti/common/inc/qti_plat.h b/plat/qti/common/inc/qti_plat.h
index 0e867be..4d9d320 100644
--- a/plat/qti/common/inc/qti_plat.h
+++ b/plat/qti/common/inc/qti_plat.h
@@ -50,4 +50,7 @@
 
 void gic_set_spi_routing(unsigned int id, unsigned int irm, u_register_t mpidr);
 
+void qti_pmic_prepare_reset(void);
+void qti_pmic_prepare_shutdown(void);
+
 #endif /* QTI_PLAT_H */