bootstage: powerpc: support fdt stash and reporting

This implements stashing of bootstage timing data to FDT and automatic
timing reporting. To enable define CONFIG_BOOTSTAGE_FDT and
CONFIG_BOOTSTAGE_REPORT respectively.

Signed-off-by: Rommel G Custodio <sessyargc+u-boot@gmail.com>
Reviewed-by: York Sun <yorksun@freescale.com>

arch/powerpc/lib/bootm.c

@@ -53,6 +53,13 @@ static void boot_jump_linux(bootm_headers_t *images)
 
 	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
 
+#ifdef CONFIG_BOOTSTAGE_FDT
+	bootstage_fdt_add_report();
+#endif
+#ifdef CONFIG_BOOTSTAGE_REPORT
+	bootstage_report();
+#endif
+
 #if defined(CONFIG_SYS_INIT_RAM_LOCK) && !defined(CONFIG_E500)
 	unlock_ram_in_cache();
 #endif