Update contributor.rst

Author: HiFiPhile

CONTRIBUTORS.rst

@@ -200,6 +200,8 @@ Notable contributors
 -  Add new DCD port for Microchip SAMx7x
 -  Add IAR compiler support
 -  Improve UAC2, CDC, DFU class driver
+-  Improve stm32_fsdev, chipidea_ci_hs, lpc_ip3511 DCD
+-  Host IAR Build CI & hardware in the loop (HITL) test
 
 
 `Full contributors list <https://github.com/hathach/tinyusb/contributors>`__