XHCI: Increase fScratchpadCount size

* To fix clang's '-Wtautological-constant-out-of-range-compare' warnings in xhci.cpp.
* by korli: adjust trace print macro.
Signed-off-by: Jérôme Duval <[email protected]>

src/add-ons/kernel/busses/usb/xhci.cpp

@@ -425,7 +425,8 @@ XHCI::Start()
 	uint32 params2 = ReadCapReg32(XHCI_HCSPARAMS2);
 	fScratchpadCount = HCS_MAX_SC_BUFFERS(params2);
 	if (fScratchpadCount > XHCI_MAX_SCRATCHPADS) {
-		TRACE_ERROR("Invalid number of scratchpads: %u\n", fScratchpadCount);
+		TRACE_ERROR("Invalid number of scratchpads: %" B_PRIu32 "\n",
+			fScratchpadCount);
 		return B_ERROR;
 	}
 

src/add-ons/kernel/busses/usb/xhci.h

@@ -242,7 +242,7 @@ private:
 			uint8				fPortSlots[XHCI_MAX_PORTS];
 
 			// Scratchpad
-			uint8				fScratchpadCount;
+			uint32				fScratchpadCount;
 			area_id				fScratchpadArea[XHCI_MAX_SCRATCHPADS];
 			void *				fScratchpad[XHCI_MAX_SCRATCHPADS];