ixgbe: fix ixgbe_check_reset_blocked() declaration

The commit c97506ab0e22 ("ixgbe: Add check for FW veto bit")
introduced the new function ixgbe_check_reset_blocked() with a minor
issue in declaration. Fix the declaration by changing the type
specifier to bool as the definition returns a boolean value.
Additionally all ixgbe_check_reset_blocked() callers are expected to
return a boolean value.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Acked-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
index ad51c12..23f7652 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
@@ -107,7 +107,7 @@
  * have this bit just return false since the link can not be blocked
  * via this method.
  **/
-s32 ixgbe_check_reset_blocked(struct ixgbe_hw *hw)
+bool ixgbe_check_reset_blocked(struct ixgbe_hw *hw)
 {
 	u32 mmngc;