[GPU] Fix GPU Plugin for Leaky Relu with 1D Slope Input Parameter (#31334)
PRelu Inputs from the SPEC:
https://docs.openvino.ai/2025/documentation/openvino-ir-format/operation-sets/operation-specs/activation/prelu-1.html
1: data. A tensor of type T and arbitrary shape. Required.
2: slope. A tensor of type T and rank greater or equal to 1. Tensor with
negative slope values. Required.
Note: Channels dimension corresponds to the second dimension of data
input tensor. If slope input rank is 1 and its dimension is equal to the
second dimension of data input, then per channel broadcast is applied.
Otherwise slope input is broadcasted with numpy rules, description is
available in Broadcast Rules For Elementwise Operations.
JIRA: [CVS-165844](https://jira.devtools.intel.com/browse/CVS-165844)
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Co-authored-by: Katarzyna Mitrus <katarzyna.mitrus@intel.com>