Bluetooth: btintel_pcie: Fix warning reported by sparse

Fix sparse error.

Fixes: c2b636b ("Bluetooth: btintel_pcie: Add support for PCIe transport")
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Kiran K <[email protected]>
Signed-off-by: Luiz Augusto von Dentz <[email protected]>

Author: kirankrishnappa-intel

drivers/bluetooth/btintel_pcie.c

@@ -670,7 +670,7 @@ struct btintel_pcie_causes_list {
 	u8 cause_num;
 };
 
-struct btintel_pcie_causes_list causes_list[] = {
+static struct btintel_pcie_causes_list causes_list[] = {
 	{ BTINTEL_PCIE_MSIX_FH_INT_CAUSES_0,	BTINTEL_PCIE_CSR_MSIX_FH_INT_MASK,	0x00 },
 	{ BTINTEL_PCIE_MSIX_FH_INT_CAUSES_1,	BTINTEL_PCIE_CSR_MSIX_FH_INT_MASK,	0x01 },
 	{ BTINTEL_PCIE_MSIX_HW_INT_CAUSES_GP0, BTINTEL_PCIE_CSR_MSIX_HW_INT_MASK,	0x20 },