Add PCIe enumeration checks for AST2700 and AST2700fc functional tests.

This patch introduces a helper "do_ast2700_pcie_test()" that runs
"lspci -s 0002:00:00.0" on the emulated system and verifies the
expected PCIe device is present:

- 0002:00:00.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI
   Bridge

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
---
 tests/functional/aarch64/test_aspeed_ast2700.py   | 7 +++++++
 tests/functional/aarch64/test_aspeed_ast2700fc.py | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/tests/functional/aarch64/test_aspeed_ast2700.py b/tests/functional/aarch64/test_aspeed_ast2700.py
index a3db267294..de3ef7d83b 100755
--- a/tests/functional/aarch64/test_aspeed_ast2700.py
+++ b/tests/functional/aarch64/test_aspeed_ast2700.py
@@ -69,6 +69,11 @@ def do_ast2700_i2c_test(self):
         exec_command_and_wait_for_pattern(self,
             'cat /sys/bus/i2c/devices/1-004d/hwmon/hwmon*/temp1_input', '18000')
 
+    def do_ast2700_pcie_test(self):
+        exec_command_and_wait_for_pattern(self,
+            'lspci -s 0002:00:00.0',
+            '0002:00:00.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge')
+
     def start_ast2700_test(self, name):
         num_cpu = 4
         uboot_size = os.path.getsize(self.scratch_file(name,
@@ -130,6 +135,7 @@ def test_aarch64_ast2700a1_evb_sdk_v09_06(self):
         self.start_ast2700_test('ast2700-default')
         self.verify_openbmc_boot_and_login('ast2700-default')
         self.do_ast2700_i2c_test()
+        self.do_ast2700_pcie_test()
 
     def test_aarch64_ast2700a1_evb_sdk_vbootrom_v09_07(self):
         self.set_machine('ast2700a1-evb')
@@ -139,6 +145,7 @@ def test_aarch64_ast2700a1_evb_sdk_vbootrom_v09_07(self):
         self.verify_vbootrom_firmware_flow()
         self.verify_openbmc_boot_and_login('ast2700-default')
         self.do_ast2700_i2c_test()
+        self.do_ast2700_pcie_test()
 
 if __name__ == '__main__':
     QemuSystemTest.main()
diff --git a/tests/functional/aarch64/test_aspeed_ast2700fc.py b/tests/functional/aarch64/test_aspeed_ast2700fc.py
index b85370e182..8ba2ddab0d 100755
--- a/tests/functional/aarch64/test_aspeed_ast2700fc.py
+++ b/tests/functional/aarch64/test_aspeed_ast2700fc.py
@@ -49,6 +49,11 @@ def do_ast2700_i2c_test(self):
         exec_command_and_wait_for_pattern(self,
             'cat /sys/bus/i2c/devices/1-004d/hwmon/hwmon*/temp1_input', '18000')
 
+    def do_ast2700_pcie_test(self):
+        exec_command_and_wait_for_pattern(self,
+            'lspci -s 0002:00:00.0',
+            '0002:00:00.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge')
+
     def do_ast2700fc_ssp_test(self):
         self.vm.shutdown()
         self.vm.set_console(console_index=1)
@@ -128,6 +133,7 @@ def test_aarch64_ast2700fc_sdk_v09_06(self):
         self.start_ast2700fc_test('ast2700-default')
         self.verify_openbmc_boot_and_login('ast2700-default')
         self.do_ast2700_i2c_test()
+        self.do_ast2700_pcie_test()
         self.do_ast2700fc_ssp_test()
         self.do_ast2700fc_tsp_test()
 
-- 
2.43.0