Further renames of platform porting functions

Rename the ic_* platform porting functions to plat_ic_* to be
consistent with the other functions in platform.h. Also rename
bl31_get_next_image_info() to bl31_plat_get_next_image_ep_info()
and remove the duplicate declaration in bl31.h.

Change-Id: I4851842069d3cff14c0a468daacc0a891a7ede84
diff --git a/bl32/tsp/tsp_interrupt.c b/bl32/tsp/tsp_interrupt.c
index ac45d7a..4a4b877 100644
--- a/bl32/tsp/tsp_interrupt.c
+++ b/bl32/tsp/tsp_interrupt.c
@@ -82,7 +82,7 @@
 	 * secure physical generic timer interrupt in which case, handle it.
 	 * Otherwise throw this interrupt at the EL3 firmware.
 	 */
-	id = ic_get_pending_interrupt_id();
+	id = plat_ic_get_pending_interrupt_id();
 
 	/* TSP can only handle the secure physical timer interrupt */
 	if (id != IRQ_SEC_PHY_TIMER)
@@ -92,10 +92,10 @@
 	 * Handle the interrupt. Also sanity check if it has been preempted by
 	 * another secure interrupt through an assertion.
 	 */
-	id = ic_acknowledge_interrupt();
+	id = plat_ic_acknowledge_interrupt();
 	assert(id == IRQ_SEC_PHY_TIMER);
 	tsp_generic_timer_handler();
-	ic_end_of_interrupt(id);
+	plat_ic_end_of_interrupt(id);
 
 	/* Update the statistics and print some messages */
 	tsp_stats[linear_id].fiq_count++;