ARM: dts: Correct white-space style

Correct a few white-space issues, like missing space before bracket '{'
character or spurious space, which will be flagged by dt-check-style
("redundant-whitespace" warning).  No functional changes.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Michal Simek <michal.simek@amd.com> # Zynq
Link: https://patch.msgid.link/20260801210210.383417-3-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>