Limit resizable BAR to Linux as NEO doesn't use libpci.

level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:15:10: fatal error: 'linux/pci_regs.h' file not found
#include <linux/pci_regs.h>
         ^~~~~~~~~~~~~~~~~~
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:157:20: error: use of undeclared identifier 'PCI_CFG_SPACE_SIZE'
    uint32_t pos = PCI_CFG_SPACE_SIZE;
                   ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:167:23: error: use of undeclared identifier 'PCI_CFG_SPACE_EXP_SIZE'
    auto loopCount = (PCI_CFG_SPACE_EXP_SIZE - PCI_CFG_SPACE_SIZE) / 8;
                      ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:167:48: error: use of undeclared identifier 'PCI_CFG_SPACE_SIZE'
    auto loopCount = (PCI_CFG_SPACE_EXP_SIZE - PCI_CFG_SPACE_SIZE) / 8;
                                               ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:174:13: error: use of undeclared identifier 'PCI_EXT_CAP_ID'
        if (PCI_EXT_CAP_ID(header) == PCI_EXT_CAP_ID_REBAR) {
            ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:174:39: error: use of undeclared identifier 'PCI_EXT_CAP_ID_REBAR'
        if (PCI_EXT_CAP_ID(header) == PCI_EXT_CAP_ID_REBAR) {
                                      ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:177:15: error: use of undeclared identifier 'PCI_EXT_CAP_NEXT'
        pos = PCI_EXT_CAP_NEXT(header);
              ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:178:19: error: use of undeclared identifier 'PCI_CFG_SPACE_SIZE'
        if (pos < PCI_CFG_SPACE_SIZE) {
                  ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:202:48: error: use of undeclared identifier 'PCI_CFG_SPACE_EXP_SIZE'
    configMemory = std::make_unique<uint8_t[]>(PCI_CFG_SPACE_EXP_SIZE);
                                               ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:203:35: error: use of undeclared identifier 'PCI_CFG_SPACE_EXP_SIZE'
    memset(configMemory.get(), 0, PCI_CFG_SPACE_EXP_SIZE);
                                  ^
level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp:204:55: error: use of undeclared identifier 'PCI_CFG_SPACE_EXP_SIZE'
    this->preadFunction(fdConfig, configMemory.get(), PCI_CFG_SPACE_EXP_SIZE, 0);
                                                      ^

--- level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp.orig	2021-07-27 12:47:48 UTC
+++ level_zero/tools/source/sysman/pci/linux/os_pci_imp.cpp
@@ -12,7 +12,9 @@
 
 #include "sysman/pci/pci_imp.h"
 
+#ifdef __linux__
 #include <linux/pci_regs.h>
+#endif
 
 namespace L0 {
 
@@ -154,6 +156,7 @@ ze_result_t LinuxPciImp::initializeBarProperties(std::
 
 // Parse PCIe configuration space to see if resizable Bar is supported
 bool LinuxPciImp::resizableBarSupported() {
+#ifdef __linux__
     uint32_t pos = PCI_CFG_SPACE_SIZE;
     uint32_t header = 0;
 
@@ -180,6 +183,7 @@ bool LinuxPciImp::resizableBarSupported() {
         }
         header = getDwordFromConfig(pos);
     }
+#endif
     return false;
 }
 
@@ -192,6 +196,7 @@ ze_result_t LinuxPciImp::getState(zes_pci_state_t *sta
 }
 
 void LinuxPciImp::pciExtendedConfigRead() {
+#ifdef __linux__
     std::string pciConfigNode;
     pSysfsAccess->getRealPath("device/config", pciConfigNode);
     int fdConfig = -1;
@@ -203,6 +208,7 @@ void LinuxPciImp::pciExtendedConfigRead() {
     memset(configMemory.get(), 0, PCI_CFG_SPACE_EXP_SIZE);
     this->preadFunction(fdConfig, configMemory.get(), PCI_CFG_SPACE_EXP_SIZE, 0);
     this->closeFunction(fdConfig);
+#endif
 }
 
 LinuxPciImp::LinuxPciImp(OsSysman *pOsSysman) {