commit da946aea upstream.

According to IMX6D/Q RM, table 18-3, sata clock's parent is ahb, not ipg.
Signed-off-by: Sebastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
[dirk.behme: Adjust moved file and context]
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>