util: Remove os/os_thread.h and replace #include "os/os_thread.h" with #include "util/u_thread.h"

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19557>

src/util/u_debug_stack_android.cpp

@@ -27,7 +27,7 @@
 #include "util/u_debug.h"
 #include "u_debug_stack.h"
 #include "util/hash_table.h"
-#include "os/os_thread.h"
+#include "util/u_thread.h"
 
 static hash_table *symbol_table;
 static simple_mtx_t table_mutex = SIMPLE_MTX_INITIALIZER;