PCI: mobiveil: Add configured inbound windows counter

Current code only keeps track of the number of outbound windows
configured but it does not for inbound windows. Add a counter
to keep track of initialized inbound windows.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>

drivers/pci/controller/pcie-mobiveil.c

@@ -481,6 +481,7 @@ static void program_ib_windows(struct mobiveil_pcie *pcie, int win_num,
 
 	csr_writel(pcie, pci_addr, PAB_PEX_AMAP_PEX_WIN_L(win_num));
 	csr_writel(pcie, 0, PAB_PEX_AMAP_PEX_WIN_H(win_num));
+	pcie->ib_wins_configured++;
 }
 
 /*