lib: update open-amp lib to SHA 3737f8b18ad2

Origin:
	https://github.com/OpenAMP/open-amp

Commit:
	3737f8b18ad24a3b091a11cc6ea320d8b0576da5

Status:
	Update to open-amp main branch that integrates:
	3737f8b18ad2 ("rpmsg_virtio.c: wait_remote_ready use sleep instead to avoid starvation")

Signed-off-by: Arnaud Pouliquen <[email protected]>

Author: arnopo

open-amp/lib/remoteproc/remoteproc_virtio.c

@@ -15,6 +15,7 @@
 #include <metal/sys.h>
 #include <metal/utilities.h>
 #include <metal/alloc.h>
+#include <metal/sleep.h>
 
 static void rproc_virtio_delete_virtqueues(struct virtio_device *vdev)
 {
@@ -412,6 +413,6 @@ void rproc_virtio_wait_remote_ready(struct virtio_device *vdev)
 		status = rproc_virtio_get_status(vdev);
 		if (status & VIRTIO_CONFIG_STATUS_DRIVER_OK)
 			return;
-		metal_yield();
+		metal_sleep_usec(1000);
 	}
 }

open-amp/lib/rpmsg/rpmsg_virtio.c

@@ -272,7 +272,7 @@ static int rpmsg_virtio_wait_remote_ready(struct rpmsg_virtio_device *rvdev)
 		} else if (status & VIRTIO_CONFIG_STATUS_DRIVER_OK) {
 			return 0;
 		}
-		metal_yield();
+		metal_sleep_usec(1000);
 	}
 }