xpl: Rename spl_phase() to xpl_phase()

Rename this function to indicate that it refers to any xPL phase.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c
index 78e5de9..2753df2 100644
--- a/drivers/pci/pci_rom.c
+++ b/drivers/pci/pci_rom.c
@@ -379,7 +379,7 @@
 	}
 
 	/* In U-Boot proper, collect the information added by SPL (see below) */
-	if (IS_ENABLED(CONFIG_SPL_VIDEO) && spl_phase() > PHASE_SPL &&
+	if (IS_ENABLED(CONFIG_SPL_VIDEO) && xpl_phase() > PHASE_SPL &&
 	    CONFIG_IS_ENABLED(BLOBLIST)) {
 		struct video_handoff *ho;
 
@@ -425,7 +425,7 @@
 	       mode_info.vesa.bits_per_pixel);
 
 	/* In SPL, store the information for use by U-Boot proper */
-	if (spl_phase() == PHASE_SPL && CONFIG_IS_ENABLED(BLOBLIST)) {
+	if (xpl_phase() == PHASE_SPL && CONFIG_IS_ENABLED(BLOBLIST)) {
 		struct video_handoff *ho;
 
 		ho = bloblist_add(BLOBLISTT_U_BOOT_VIDEO, sizeof(*ho), 0);