verify-sof-firmware-load: print wallclocks timestamps too

Both ktimes and wallclock timestamps are useful but using sometimes the former
and other times the latter can make troubleshooting failures more
difficult. In this case print both. It is especially useful here
considering this test PASSes after unloading the driver.

Also update the -help message that was out of date with recent changes
and move logs after journalctl status in case of failure.

Signed-off-by: Marc Herbert <marc.herbert@intel.com>

Author: marc-hb

test-case/verify-sof-firmware-load.sh

@@ -5,13 +5,12 @@ set -e
 ##
 ## Case Name: verify-sof-firmware-load
 ## Description:
-##    Check if the SOF fw loaded successfully in the kernel logs
+##    Check if the SOF fw loaded successfully at least once in the whole
+##    kernel logs. This test can PASS after unloading the drivers!
 ## Case step:
 ##    Check kernel logs to search fw load info
 ## Expect result:
-##    Get fw version info in dmesg
-##    sof-audio-pci 0000:00:0e.0: Firmware info: version 1:1:0-e5fe2
-##    sof-audio-pci 0000:00:0e.0: Firmware: ABI 3:11:0 Kernel ABI 3:11:0
+##    'sof boot complete' found at least once in the kernel logs
 ##
 
 # source from the relative path of current folder
@@ -27,13 +26,21 @@ cmd="journalctl_cmd"
 dlogi "Checking SOF Firmware load info in kernel log"
 if sof_firmware_boot_complete; then
 
+    # Show messages again but with wallclock timestamps
+    # that can be matched with the ktimes just printed.
+    sof_firmware_boot_complete --output=short
+
+    # On some systems 'firmware boot complete' can be printed again on
+    # every resume from D3. These versions are printed only when the
+    # kernel driver is loaded.
     grep_firmware_info_in_logs
     exit 0
 
 else # failed, show some logs
 
-    journalctl_cmd --lines 50 || true
     printf ' ------\n  Check journalctl status: \n ---- \n'
     systemctl --no-pager status systemd-journald* || true
+    journalctl_cmd --lines 50 || true
+
     die "Cannot find any 'sof boot complete' message in logs since boot time"
 fi