M_I2C12
K_MMUX(M_I2C12, RCC_I2C12CKSELR, 0, 3, 0),
KCLK(I2C1_K, "i2c1_k", i2c12_src, 0, G_I2C1, M_I2C12),
KCLK(I2C2_K, "i2c2_k", i2c12_src, 0, G_I2C2, M_I2C12),