platform/x86/intel/uncore-freq: Replace sprintf() with scnprintf()

platform/x86/intel/uncore-freq: Replace sprintf() with scnprintf()

Replace unbounded sprintf() calls with scnprintf() to prevent potential
buffer overflows when formatting device names. While the current format
strings cannot overflow the buffer, using scnprintf() follows kernel
best practices for string formatting.

Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Link: https://patch.msgid.link/20251230124516.229125-2-kaushlendra.kumar@intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>