fix typo in LSCPU_OUTPUT

Author: siggmo

CMakeLists.txt

@@ -111,11 +111,11 @@ elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64")
         target_compile_options(FANS_FANS PUBLIC -mavx2 -mfma)
     elseif (CMAKE_SYSTEM_NAME STREQUAL "Linux")
         # Linux: Check for AVX2 support using lscpu
-        execute_process(COMMAND lscpu OUTPUT_VARIABLE LSCU_OUTPUT ERROR_QUIET)
+        execute_process(COMMAND lscpu OUTPUT_VARIABLE LSCPU_OUTPUT ERROR_QUIET)
 
         # Default to AVX; enable AVX2 if supported by hardware
         set(FANS_USE_AVX2 FALSE)
-        if (LSCU_OUTPUT MATCHES "avx2")
+        if (LSCPU_OUTPUT MATCHES "avx2")
             set(FANS_USE_AVX2 TRUE)
         endif()