util: Move UTIL_MAX_CPUS from u_thread.h to u_cpu_detect.h

UTIL_MAX_CPUS is not used by u_thread.* anymore after commit
"util: replace UTIL_MAX_CPUS by util_cpu_caps.num_cpu_mask_bits"

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19266>

src/util/u_cpu_detect.h

@@ -43,6 +43,9 @@
 #include "util/u_thread.h"
 
 
+/* Maximal cpu count for update affinity */
+#define UTIL_MAX_CPUS               1024  /* this should be enough */
+
 #ifdef __cplusplus
 extern "C" {
 #endif

src/util/u_thread.h

@@ -35,9 +35,6 @@
 #include "c11/threads.h"
 #include "detect_os.h"
 
-/* For util_set_thread_affinity to size the mask. */
-#define UTIL_MAX_CPUS               1024  /* this should be enough */
-
 /* Some highly performance-sensitive thread-local variables like the current GL
  * context are declared with the initial-exec model on Linux.  glibc allocates a
  * fixed number of extra slots for initial-exec TLS variables at startup, and