init.c: not use hardware/system console if ro.hybris.bootinternal is specify

Signed-off-by: Yen-Chin Lee <coldnew.tw@gmail.com>
init.rc: start the serial console shell as root

Signed-off-by: Yen-Chin Lee <coldnew.tw@gmail.com>
init.c: Do not mount everythin if ro.hybris.bootinternal is specify

Signed-off-by: Yen-Chin Lee <coldnew.tw@gmail.com>