[init] Show initialisation function names in debug messages

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/drivers/bus/pci_settings.c

@@ -125,5 +125,6 @@ static void pci_settings_init ( void ) {
 
 /** PCI device settings initialiser */
 struct init_fn pci_settings_init_fn __init_fn ( INIT_NORMAL ) = {
+	.name = "pci",
 	.initialise = pci_settings_init,
 };

src/drivers/bus/usb_settings.c

@@ -173,5 +173,6 @@ static void usb_settings_init ( void ) {
 
 /** USB device settings initialiser */
 struct init_fn usb_settings_init_fn __init_fn ( INIT_NORMAL ) = {
+	.name = "usb",
 	.initialise = usb_settings_init,
 };

src/drivers/net/efi/snponly.c

@@ -259,5 +259,6 @@ static void chained_init ( void ) {
 
 /** EFI chainloaded-device-only initialisation function */
 struct init_fn chained_init_fn __init_fn ( INIT_LATE ) = {
+	.name = "chained",
 	.initialise = chained_init,
 };