3c59x: handle pci_name() being const

This changes vortex_prob1() to handle pci_name() now returning a
constant string.

Cc: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/net/3c59x.c

@@ -1010,7 +1010,7 @@ static int __devinit vortex_probe1(struct device *gendev,
 	static int printed_version;
 	int retval, print_info;
 	struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx];
-	char *print_name = "3c59x";
+	const char *print_name = "3c59x";
 	struct pci_dev *pdev = NULL;
 	struct eisa_device *edev = NULL;
 	DECLARE_MAC_BUF(mac);