linux-hikey960: move from hikey960_defconfig to defconfig
linux-hikey960: move from hikey960_defconfig to defconfig

Update SRCREV_kernel and move from hikey960_defconfig to defconfig.
According to Guodong, hikey960_defconfig is for AOSP.
While it was working fine until recently, using hikey960_defconfig results
now in a broken build.

Signed-off-by: Koen Kooi <d0a161424d033e19799f22c7b0d92266ac3a2161@linaro.org>
Signed-off-by: Fathi Boudra <7cd6e55cc07a66bc71d7901a4cddfe6c22aab659@linaro.org>

kraj/meta-96boards,fboudra/meta-96boards,kraj/meta-96boards,96boards/meta-96boards,mrchapp/meta-96boards