radv: Remove usage of cnd_monotonic.h

Improve: 91fe0b5629 ("radv: Delete lots of sync code.")

As cnd_monotonic.h are include `util/os_time.h`, radv_debug.c and radv_debug.c needs `util/os_time.h`
So include in these files directly.

The compiling errors are:
```
../src/amd/vulkan/radv_debug.c:707:12: error: implicit declaration of function 'os_localtime' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
   timep = os_localtime(&raw_time, &result);

../src/amd/vulkan/radv_device.c:97:11: error: implicit declaration of function 'os_time_get_nano' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
   return os_time_get_nano();
          ^

../../src/amd/vulkan/radv_pipeline.c: In function 'radv_create_shaders':
../../src/amd/vulkan/radv_pipeline.c:4119:29: error: implicit declaration of function 'os_time_get_nano' [-Werror=implicit-function-declaration]
 4119 |    int64_t pipeline_start = os_time_get_nano();
```

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16536>

src/amd/vulkan/radv_debug.c

@@ -33,6 +33,7 @@
 #include <sys/stat.h>
 
 #include "util/mesa-sha1.h"
+#include "util/os_time.h"
 #include "ac_debug.h"
 #include "radv_debug.h"
 #include "radv_shader.h"

src/amd/vulkan/radv_device.c

@@ -63,6 +63,7 @@ typedef void *drmDevicePtr;
 #include "util/debug.h"
 #include "util/driconf.h"
 #include "util/mesa-sha1.h"
+#include "util/os_time.h"
 #include "util/timespec.h"
 #include "util/u_atomic.h"
 #include "winsys/null/radv_null_winsys_public.h"

src/amd/vulkan/radv_pipeline.c

@@ -30,6 +30,7 @@
 #include "spirv/nir_spirv.h"
 #include "util/disk_cache.h"
 #include "util/mesa-sha1.h"
+#include "util/os_time.h"
 #include "util/u_atomic.h"
 #include "radv_cs.h"
 #include "radv_debug.h"

src/amd/vulkan/radv_private.h

@@ -49,7 +49,6 @@
 #endif
 #include "compiler/shader_enums.h"
 #include "util/bitscan.h"
-#include "util/cnd_monotonic.h"
 #include "util/list.h"
 #include "util/macros.h"
 #include "util/rwlock.h"