Onecloud: some update (#4073)

* Onecloud: Rename back to csc

* meson: Adjust sources config

* Onecloud: disable u-boot compilation

* Onecloud: Add armbianEnv.txt
Onecloud: Use UUID to special rootfs

* Onecloud: bootscript lint

* Onecloud: bootscript support extraargs

* Onecloud: support output boot log to HDMI

* Onecloud: tweak VCC_CORE

* Typo

config/bootenv/onecloud.txt

@@ -0,0 +1,23 @@
+# console:
+#   Where the boot log print.
+#     both:     HDMI Display and serial
+#     display:  HDMI Display
+#     serial:   Serial
+#   Note:
+#     Due to https://github.com/systemd/systemd/issues/9899, only the last
+#       console will be the primary console (/dev/console) which is the
+#       only console the initramfs shell and the systemd log use.
+#     So when set "both", we use serial console as the primary console.
+console="both"
+# console="display"
+# console="serial"
+
+# consoleargs:
+#   Use custom console arguments
+#   Note:
+#     When is set, the arguments generated by the "console" setting will be invaild.
+# consoleargs=""
+
+# extraargs=""
+
+# The following contents are auto-generated.