arm: lpc18xx_defconfig: remove CONFIG_MMC_DW_IDMAC
arm: lpc18xx_defconfig: remove CONFIG_MMC_DW_IDMAC

DesignWare MMC Controller's transfer mode should be decided
at runtime instead of compile-time. So we remove this config
option and read dw_mmc's register to select DMA master.

Signed-off-by: Shawn Lin <85a8403471508147ef46d210bc33c05fdc88f382@rock-chips.com>
Acked-by: Joachim Eastwood <6f54d78a4cd927eb19dd17c34117bfc80f7abcf7@gmail.com>
Signed-off-by: Jaehoon Chung <6d67df43a1b10a02c7c04e8346f9d9ca207335e5@samsung.com>
Signed-off-by: Ulf Hansson <fe47b31f388f85ce6ddf64bf3a0cf6b46077d0e6@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs