ANDROID: sound: Add hikey960 i2s audio driver

Add i2s driver for hisi3660 soc found on the hikey960 board.
Add conpile line in make file.
Technical support by Guangke Ji.

Bug: 146450171
Signed-off-by: Youlin Wang <wangyoulin1@hisilicon.com>
Signed-off-by: Tanglei Han <hantanglei@huawei.com>
Signed-off-by: Guangke Ji <jiguangke@huawei.com>
Signed-off-by: Feng Chen <puck.chen@hisilicon.com>
Signed-off-by: Kaihua Zhong <zhongkaihua@huawei.com>
Signed-off-by: Jun Chen <chenjun14@huawei.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Yiping Xu <xuyiping@hisilicon.com>
Signed-off-by: Pengcheng Li <lipengcheng8@huawei.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I90e66ff47ebd2cd42fa233a4c4dbac6e74cd01d3