linux-imx

arm64: dts: msm8998: efficiency is not valid property

efficiency comes from downstream. The valid upstream property is
capacity-dmips-mhz but until we can come up with those numbers, remove
this property.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>