MLBEDSW-7203: Data type alias deprecations

Deprecation of some data type aliases in NumPy version 1.24.0 caused Vela
to crash when using Python version 3.8 or above. Replaced the deprecated
aliases.

Signed-off-by: Rickard Bolin <rickard.bolin@arm.com>
Change-Id: Ide167ee864a340194ec5e69537c8718192c78ace
diff --git a/ethosu/vela/tflite_mapping.py b/ethosu/vela/tflite_mapping.py
index dd52a3a..8ec0173 100644
--- a/ethosu/vela/tflite_mapping.py
+++ b/ethosu/vela/tflite_mapping.py
@@ -201,7 +201,7 @@
     TensorType.FLOAT16: np.float16,
     TensorType.FLOAT32: np.float32,
     TensorType.FLOAT64: np.float64,
-    TensorType.BOOL: np.bool,
+    TensorType.BOOL: bool,
     TensorType.COMPLEX64: np.complex64,
     TensorType.COMPLEX128: np.complex128,
     TensorType.STRING: np.uint8,