bootstage: Add IDs for SPI flash reading and decompression

We maintain an accumulator for time spent reading from SPI flash, since
this can be significant on some platforms. Also add one for decompression
time.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>

include/bootstage.h

@@ -195,6 +195,8 @@ enum bootstage_id {
 
 	BOOTSTAGE_ID_ACCUM_LCD,
 	BOOTSTAGE_ID_ACCUM_SCSI,
+	BOOTSTAGE_ID_ACCUM_SPI,
+	BOOTSTAGE_ID_ACCUM_DECOMP,
 
 	/* a few spare for the user, from here */
 	BOOTSTAGE_ID_USER,