i2c: rcar: should depend on HAS_DMA

If NO_DMA=y:

drivers/built-in.o: In function `rcar_i2c_dma_unmap':
i2c-rcar.c:(.text+0x6f06c6): undefined reference to `bad_dma_ops'
drivers/built-in.o: In function `rcar_i2c_dma':
i2c-rcar.c:(.text+0x6f07e2): undefined reference to `bad_dma_ops'
i2c-rcar.c:(.text+0x6f0838): undefined reference to `bad_dma_ops'

Add a dependency on HAS_DMA to fix this.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Acked-by: Niklas Söderlund <[e-mail]>
Signed-off-by: Wolfram Sang <[e-mail]>

drivers/i2c/busses/Kconfig

···
 
 config I2C_RCAR
 	tristate "Renesas R-Car I2C Controller"
+	depends on HAS_DMA
 	depends on ARCH_RENESAS || COMPILE_TEST
 	select I2C_SLAVE
 	help