cbmem: add indicator to hooks if cbmem is being recovered

It can be helpful to certain users of the cbmem init hooks
to know if recovery was done or not. Therefore, add this
as a parameter to the hooks.

Change-Id: I049fc191059cfdb8095986d3dc4eee9e25cf5452
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10480
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/drivers/usb/ehci_debug.c

@@ -670,7 +670,7 @@ static int get_usbdebug_from_cbmem(struct ehci_debug_info *info)
 }
 
 #elif defined(__PRE_RAM__)
-static void migrate_ehci_debug(void)
+static void migrate_ehci_debug(int is_recovery)
 {
 	struct ehci_debug_info *dbg_info = dbgp_ehci_info();
 	struct ehci_debug_info *dbg_info_cbmem;