Marlin 2 already supports these boards with that same MPU, without issues
#define BOARD_GTM32_PRO_VB 4005 // STM32F103VET6 controller
#define BOARD_GTM32_MINI 4006 // STM32F103VET6 controller
#define BOARD_GTM32_MINI_A30 4007 // STM32F103VET6 controller
#define BOARD_GTM32_REV_B 4008 // STM32F103VET6 controller
#define BOARD_MKS_ROBIN_MINI 4012 // MKS Robin Mini (STM32F103VET6)
#define BOARD_MKS_ROBIN_NANO 4013 // MKS Robin Nano (STM32F103VET6)
#define BOARD_MKS_ROBIN_NANO_V2 4014 // MKS Robin Nano V2 (STM32F103VET6)
#define BOARD_MKS_ROBIN_E3P 4022 // MKS Robin E3p (STM32F103VET6)
#define BOARD_LONGER3D_LK 4034 // Alfawise U20/U20+/U30 (Longer3D LK1/2) / STM32F103VET6
#define BOARD_FLSUN_HISPEED 4046 // FLSUN HiSpeedV1 (STM32F103VET6)