cxl/pci: Rename pci.h to cxlpci.h

Similar to the mem.h rename, if the core wants to reuse definitions from
drivers/cxl/pci.h it is unable to use <pci.h> as that collides with
archs that have an arch/$arch/include/asm/pci.h, like MIPS.

Reported-by: kernel test robot <[e-mail]>
Acked-by: Ben Widawsky <[e-mail]>
Reviewed-by: Jonathan Cameron <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dan Williams <[e-mail]>

drivers/cxl/acpi.c

···
 #include <linux/kernel.h>
 #include <linux/acpi.h>
 #include <linux/pci.h>
+#include "cxlpci.h"
 #include "cxl.h"
-#include "pci.h"
 
 /* Encode defined in CXL 2.0 8.2.5.12.7 HDM Decoder Control Register */
 #define CFMWS_INTERLEAVE_WAYS(x)	(1 << (x)->interleave_ways)

drivers/cxl/core/regs.c

···
 #include <linux/slab.h>
 #include <linux/pci.h>
 #include <cxlmem.h>
-#include <pci.h>
+#include <cxlpci.h>
 
 /**
  * DOC: cxl registers

drivers/cxl/pci.c

···
 #include <linux/pci.h>
 #include <linux/io.h>
 #include "cxlmem.h"
-#include "pci.h"
+#include "cxlpci.h"
 #include "cxl.h"
 
 /**

drivers/cxl/pci.h drivers/cxl/cxlpci.h

···
 /* Copyright(c) 2020 Intel Corporation. All rights reserved. */
 #ifndef __CXL_PCI_H__
 #define __CXL_PCI_H__
+#include "cxl.h"
 
 #define CXL_MEMORY_PROGIF	0x10