android: init: Parse 'lcd=XXX' in kernel cmdline

Signed-off-by: hmz007 <hmz007@gmail.com>

system/core/init/property_service.cpp

@@ -1234,6 +1234,14 @@ static void ProcessKernelCmdline() {
     ImportKernelCmdline([&](const std::string& key, const std::string& value) {
         if (StartsWith(key, ANDROIDBOOT_PREFIX)) {
             InitPropertySet("ro.boot." + key.substr(ANDROIDBOOT_PREFIX.size()), value);
+        } else if (key == "lcd") {
+            std::size_t found = value.find_first_of(",");
+            InitPropertySet("ro.boot.panel", value.substr(0, found));
+            if (found != std::string::npos) {
+                auto dpi = std::atoi(value.substr(found + 1).c_str());
+                if (dpi >= 80 && dpi <= 640)
+                    InitPropertySet("ro.sf.lcd_density", android::base::StringPrintf("%d", dpi));
+            }
         }
     });
 }