ARM: dts: fix typo on APQ8060 Dragonboard

The DTS referred to SDC5 when it meant SDC1.

Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>