Fix doing silent update,power cut/restoration,screen is turned on

[Description]
1. In the current code, when tv enter recovery mode, it will
write "boot-recovery" into the BCB command field by default.
This is a protection mechanism to ensure that tv can re-enter
recovery mode continues OTA upgrade after power cut/power restoration.
So, when re-enter recovery mode, since there is no "quiescent"
in the boot parameters, the screen will turn on.

2. And we hope the screen will be turned off when tv re-enter
recovery mode to continue OTA upgrade.

3. We made the following modify:
In reocvery mode,According to GetBoolProperty
"ro.boot.quiescent"to determine whether it is a quiescent
boot this time,and then write "boot-recovery, quiescent"
or"boot-recovery" accordingly.

[Test Report]
1.boot up ok.
2.silent update ok.
(the screen is turned off when interrupting/
resume or complete the upgrade)
3.OTA update ok.
(the screen is turned on when interrupting/
resume or complete the upgrade)

Change-Id: Ic68898f1a8e9ab176556ee2b61efec4d8d5d36e2
diff --git a/bootloader_message/bootloader_message.cpp b/bootloader_message/bootloader_message.cpp
index 1ea56cd..0a713ee 100644
--- a/bootloader_message/bootloader_message.cpp
+++ b/bootloader_message/bootloader_message.cpp
@@ -209,7 +209,11 @@
   memset(boot->command, 0, sizeof(boot->command));
   memset(boot->recovery, 0, sizeof(boot->recovery));
 
-  strlcpy(boot->command, "boot-recovery", sizeof(boot->command));
+  if (android::base::GetBoolProperty("ro.boot.quiescent", false)) {
+    strlcpy(boot->command, "boot-recovery,quiescent", sizeof(boot->command));
+  } else {
+    strlcpy(boot->command, "boot-recovery", sizeof(boot->command));
+  }
 
   std::string recovery = "recovery\n";
   for (const auto& s : options) {