linux-hikey: defconfig: enable various config built-in
linux-hikey: defconfig: enable various config built-in

https://bugs.linaro.org/show_bug.cgi?id=2647

Several kernel configs need to be built-in instead of modules.
We also need GPIO_PL061 enabled to get eMMC working on HiKey.

Signed-off-by: Fathi Boudra <7cd6e55cc07a66bc71d7901a4cddfe6c22aab659@linaro.org>

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