Hi Team,
I am using U-boot method to boot up to linux.
But at the end of booting means before gets the login prompt it got hanged at here..
[ 3.759014] Console: switching to colour dummy device 80x30[?25lfbv - The Framebuffer Viewer/root/images/renesas_logo-800x480.jpg800 x 480[?25hWelcome to Buildroot
after 2 minutes got  buildroot login: [ 90.929835] random: crng init done
due to this Lava did not fetch "root" string and unable to login. And i have seen stange string in lava while booting  
 [?25h  .

I am able to boot manually (with out lava) with out an issue. And i did not get   [?25h  string ..

How to avoid this problem .Attaching job description/device dictionary files .
[ 2.837060] Run /sbin/init as init process�Starting logging: OKread-only file system detected...doneStarting network: OKWed Oct 31 09:00:00 UTC 2018[ 3.759014] Console: switching to colour dummy device 80x30[?25lfbv - The Framebuffer Viewer/root/images/renesas_logo-800x480.jpg800 x 480[?25hWelcome to Buildrootbuildroot login: [ 90.929835] random: crng init done