plugins/core: add missing QEMU_DISABLE_CFI annotations

Most of the memory callbacks come directly from the generated code
however we have do have a a direct from C callback for the slow-path
and memory helpers.

There is also a reset callback that calls out to plugins.

Like the other plugin points we need to disable CFI as we are making
function calls to dynamically linked libraries.

Fixes: https://gitlab.com/qemu-project/qemu/-/issues/3175
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20251027110344.2289945-33-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

plugins/core.c

@@ -668,6 +668,7 @@ void exec_inline_op(enum plugin_dyn_cb_type type,
     }
 }
 
+QEMU_DISABLE_CFI
 void qemu_plugin_vcpu_mem_cb(CPUState *cpu, uint64_t vaddr,
                              uint64_t value_low,
                              uint64_t value_high,

plugins/loader.c

@@ -318,6 +318,7 @@ struct qemu_plugin_reset_data {
     bool reset;
 };
 
+QEMU_DISABLE_CFI
 static void plugin_reset_destroy__locked(struct qemu_plugin_reset_data *data)
 {
     struct qemu_plugin_ctx *ctx = data->ctx;