arm64: dts: arm: adjust whitespace around '='

Fix whitespace coding style: use single space instead of tabs or
multiple spaces around '=' sign in property assignment.  No functional
changes (same DTB).

Link: https://lore.kernel.org/r/20220526204350.832361-1-krzysztof.kozlowski@linaro.org


Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>