[GPU] Fix coverity issues (#32506)

### Tickets:
 - *174701*

Author: jade-cho

src/plugins/intel_gpu/src/graph/common_utils/jit_term.hpp

@@ -221,7 +221,7 @@ inline JitTerm operator/(const JitTerm& lhs, const JitTerm& rhs) {
 }
 inline JitTerm operator%(const JitTerm& lhs, const JitTerm& rhs) {
     OPENVINO_ASSERT(rhs.str() != "0");
-    if (rhs.str() == "1") {
+    if (rhs.str() == "1" || rhs.str() == "-1") {
         return JitTerm{"0"};
     }
 

src/plugins/intel_gpu/src/graph/graph_optimizer/prepare_buffer_fusing.cpp

@@ -757,10 +757,10 @@ void crop_in_place_optimization::update_in_place_crop_padding_simple_data_format
 
                 user_info.second.data_padding = padding(reshape_lower_sizes, reshape_upper_sizes, reshape_dyn_pad_mask);
             } else {
-                auto reshape_ps = user_info.second.get_partial_shape();
+                const auto reshape_ps = user_info.second.get_partial_shape();
                 auto output_pattern = reshape_desc->output_pattern;
 
-                auto reshape_axis = crop_axis;
+                int64_t reshape_axis = static_cast<int64_t>(crop_axis);
                 for (size_t i = 0; i < output_pattern.size(); i++) {
                     if (output_pattern[i] <= static_cast<int64_t>(reshape_axis)) {
                         reshape_axis += reshape_mode == reshape::reshape_mode::unsqueeze ? 1 : -1;