fm10k: reduce the scope of the result local variable

Reduce the scope of the result local variable in the
fm10k_iov_msg_lport_state_pf function.

This was detected by cppcheck and resolves the following warning
produced by that tool:

[fm10k_pf.c:1435]: (style) The scope of the variable 'result' can be
reduced.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/fm10k/fm10k_pf.c

@@ -1352,7 +1352,6 @@ s32 fm10k_iov_msg_lport_state_pf(struct fm10k_hw *hw, u32 **results,
 				 struct fm10k_mbx_info *mbx)
 {
 	struct fm10k_vf_info *vf_info = (struct fm10k_vf_info *)mbx;
-	u32 *result;
 	s32 err = 0;
 	u32 msg[2];
 	u8 mode = 0;
@@ -1362,7 +1361,7 @@ s32 fm10k_iov_msg_lport_state_pf(struct fm10k_hw *hw, u32 **results,
 		return FM10K_ERR_PARAM;
 
 	if (!!results[FM10K_LPORT_STATE_MSG_XCAST_MODE]) {
-		result = results[FM10K_LPORT_STATE_MSG_XCAST_MODE];
+		u32 *result = results[FM10K_LPORT_STATE_MSG_XCAST_MODE];
 
 		/* XCAST mode update requested */
 		err = fm10k_tlv_attr_get_u8(result, &mode);