Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Keil/AT32F402xx_v2/CRM/AHBEN2#0x0
AHB peripheral clock enable register 2 (CRM_AHBEN2)
OTGFS1 clock enable
https://github.com/cmsis-svd/cmsis-svd-data