selftests/pcie_bwctrl: Fix test progs list

JIRA: https://issues.redhat.com/browse/RHEL-86521
Upstream Status: 39e703e

commit 39e703e
Author: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Date:   Thu Apr 17 15:45:29 2025 +0300

    selftests/pcie_bwctrl: Fix test progs list

    Commit df6f8c4 ("selftests/pcie_bwctrl: Add 'set_pcie_speed.sh' to
    TEST_PROGS") added set_pcie_speed.sh into TEST_PROGS but that script is a
    helper that is only being called by set_pcie_cooling_state.sh, not a test
    case itself. When set_pcie_speed.sh is in TEST_PROGS, selftest harness will
    execute also it leading to bwctrl selftest errors:

      # selftests: pcie_bwctrl: set_pcie_speed.sh
      # cat: /cur_state: No such file or directory
      not ok 2 selftests: pcie_bwctrl: set_pcie_speed.sh # exit=1

    Place set_pcie_speed.sh into TEST_FILES instead to have it included into
    installed test files but not execute it from the test harness.

    Fixes: df6f8c4 ("selftests/pcie_bwctrl: Add 'set_pcie_speed.sh' to TEST_PROGS")
    Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
    Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
    Cc: stable@vger.kernel.org
    Link: https://patch.msgid.link/20250417124529.11391-1-ilpo.jarvinen@linux.intel.com

Signed-off-by: Myron Stowe <mstowe@redhat.com>

Author: Myron Stowe

tools/testing/selftests/pcie_bwctrl/Makefile

@@ -1,2 +1,3 @@
-TEST_PROGS = set_pcie_cooling_state.sh set_pcie_speed.sh
+TEST_PROGS = set_pcie_cooling_state.sh
+TEST_FILES = set_pcie_speed.sh
 include ../lib.mk