it was my mistake , initially when i run the mka mkbootimg I got this error error: vendor/xiaomi/whyred: MODULE.TARGET.SHARED_LIBRARIES.libsdm-disp-vndapis already defined by vendor/xiaomi/whyred. To resolve this I commented out those modules from vendor/xiaomi/whyred/Android.mk . I accidentally commented out libantradio module too . undoing that resolved the issue .

@aravindor Please mark as solved https://forums.ubports.com/topic/6311/how-to-ask-a-question-and-then-mark-it-as-solved