[builtins] Rename sysauxv to getauxval to reflect the function called. NFCI (#102796)

Author: brad0

compiler-rt/lib/builtins/cpu_model/aarch64.c

@@ -47,7 +47,7 @@ _Bool __aarch64_have_lse_atomics
 #include "aarch64/lse_atomics/android.inc"
 #elif __has_include(<sys/auxv.h>)
 #include "aarch64/hwcap.inc"
-#include "aarch64/lse_atomics/sysauxv.inc"
+#include "aarch64/lse_atomics/getauxval.inc"
 #else
 // When unimplemented, we leave __aarch64_have_lse_atomics initialized to false.
 #endif
@@ -75,7 +75,7 @@ struct {
 #include "aarch64/fmv/android.inc"
 #elif __has_include(<sys/auxv.h>)
 #include "aarch64/fmv/mrs.inc"
-#include "aarch64/fmv/sysauxv.inc"
+#include "aarch64/fmv/getauxval.inc"
 #else
 #include "aarch64/fmv/unimplemented.inc"
 #endif