mlxsw: pci: Fix the FW ready mask length

The system-status register is actually 16-bit wide and not 8 bit-wide.

Fixes: 233fa44b ("mlxsw: pci: Implement reset done check")
Signed-off-by: NElad Raz <eladr@mellanox.com>
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/pci_hw.h

@@ -60,7 +60,7 @@
 #define MLXSW_PCI_SW_RESET_RST_BIT		BIT(0)
 #define MLXSW_PCI_SW_RESET_TIMEOUT_MSECS	5000
 #define MLXSW_PCI_FW_READY			0xA1844
-#define MLXSW_PCI_FW_READY_MASK			0xFF
+#define MLXSW_PCI_FW_READY_MASK			0xFFFF
 #define MLXSW_PCI_FW_READY_MAGIC		0x5E
 
 #define MLXSW_PCI_DOORBELL_SDQ_OFFSET		0x000