of/platform: Do not use of_get_property() to test property presence

Use of_property_present() instead of of_get_property() to test property
'compatible' presence in of_platform_bus_create().

Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250224-of_bugfix-v1-5-03640ae8c3a6@quicinc.com


Signed-off-by: Rob Herring (Arm) <robh@kernel.org>