NFC: nxp-nci: constify nxp_nci_phy_ops structure

The only instance of a nxp_nci_phy_ops structure is never modified.  Thus
the declaration of the structure and all references to the structure type
can be made const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/nfc/nxp-nci/i2c.c b/drivers/nfc/nxp-nci/i2c.c
index fac80c6..df4333c 100644
--- a/drivers/nfc/nxp-nci/i2c.c
+++ b/drivers/nfc/nxp-nci/i2c.c
@@ -106,7 +106,7 @@
 	return r;
 }
 
-static struct nxp_nci_phy_ops i2c_phy_ops = {
+static const struct nxp_nci_phy_ops i2c_phy_ops = {
 	.set_mode = nxp_nci_i2c_set_mode,
 	.write = nxp_nci_i2c_write,
 };