staging: kpc2000: Use '%llx' for printing 'long long int' type

In order to print a 'long long int' type the 'llx' specifier needs to be
used.

Change it accordingly in order to fix the following build warning:

drivers/staging/kpc2000/kpc2000/core.c:245:4: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'long long int' [-Wformat=]
Reported-by: Build bot for Mark Brown <broonie@kernel.org>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/kpc2000/kpc2000/core.c

@@ -241,7 +241,7 @@ static int  read_system_regs(struct kp2000_device *pcard)
 	read_val = readq(pcard->sysinfo_regs_base + REG_MAGIC_NUMBER);
 	if (read_val != KP2000_MAGIC_VALUE) {
 		dev_err(&pcard->pdev->dev,
-			"Invalid magic!  Got: 0x%016llx  Want: 0x%016lx\n",
+			"Invalid magic!  Got: 0x%016llx  Want: 0x%016llx\n",
 			read_val, KP2000_MAGIC_VALUE);
 		return -EILSEQ;
 	}

drivers/staging/kpc2000/kpc2000/pcie.h

@@ -39,7 +39,7 @@
 #define REG_INTERRUPT_ACTIVE		(9 * REG_WIDTH)
 #define REG_PCIE_ERROR_COUNT		(10 * REG_WIDTH)
 
-#define KP2000_MAGIC_VALUE		0x196C61482231894D
+#define KP2000_MAGIC_VALUE		0x196C61482231894DULL
 
 #define PCI_VENDOR_ID_DAKTRONICS	0x1c33
 #define PCI_DEVICE_ID_DAKTRONICS	0x6021