Update arm_depthwise_conv_u8_basic_ver1.c

CMSIS/NN/Source/ConvolutionFunctions/arm_depthwise_conv_u8_basic_ver1.c

@@ -224,7 +224,7 @@ static void depthwise_conv_u8_generic(const uint8_t *input,
  * @param[in]     dilation_x Dilation along width. Not used and intended for future enhancement.
  * @param[in]     dilation_y Dilation along height. Not used and intended for future enhancement.
  * @param[in]     bias       Pointer to optional bias values. If no bias is
- *                           availble, NULL is expected
+ *                           available, NULL is expected
  * @param[in]     input_offset  Input tensor zero offset
  * @param[in]     filter_offset Kernel tensor zero offset
  * @param[in]     output_offset Output tensor zero offset