fix(cksum): use correct cpufeatures macro API for CPU feature detection

The cpufeatures crate uses a macro-based API (cpufeatures::new!) rather than
direct function calls. This fixes compilation errors where has_avx512f,
has_avx512bw, has_avx2, and has_pclmul functions were not found.

The correct API uses:
- cpufeatures::new!(module_name, "feature1", "feature2")
- module_name::get() to check if all features are available

Also corrected pclmulqdq feature name (was has_pclmul, should be pclmulqdq).

Author: naoNao89

src/uu/cksum/src/hardware.rs

@@ -69,7 +69,8 @@ impl CpuFeatures {
 
 #[cfg(target_arch = "x86_64")]
 fn has_avx512() -> bool {
-    cpufeatures::has_avx512f() && cpufeatures::has_avx512bw()
+    cpufeatures::new!(cpuid_avx512, "avx512f", "avx512bw");
+    cpuid_avx512::get()
 }
 
 #[cfg(not(target_arch = "x86_64"))]
@@ -79,7 +80,8 @@ fn has_avx512() -> bool {
 
 #[cfg(target_arch = "x86_64")]
 fn has_avx2() -> bool {
-    cpufeatures::has_avx2()
+    cpufeatures::new!(cpuid_avx2, "avx2");
+    cpuid_avx2::get()
 }
 
 #[cfg(not(target_arch = "x86_64"))]
@@ -89,7 +91,8 @@ fn has_avx2() -> bool {
 
 #[cfg(target_arch = "x86_64")]
 fn has_pclmul() -> bool {
-    cpufeatures::has_pclmul()
+    cpufeatures::new!(cpuid_pclmul, "pclmulqdq");
+    cpuid_pclmul::get()
 }
 
 #[cfg(not(target_arch = "x86_64"))]