Add sd card support for hi3660 soc
Signed-off-by: NLi Wei <liwei213@huawei.com>
Signed-off-by: NChen Jun <chenjun14@huawei.com>
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>