drivers: ethernet: stm32n6: Remove attributes from extern definitions

Compilers may not like that attributes are provides in actual and extern
definitions of symbols.
Removing them from extern definitions

Signed-off-by: Erwan Gouriou <[email protected]>

Author: erwango

drivers/ethernet/eth_stm32_hal_priv.h

@@ -87,17 +87,15 @@ struct eth_stm32_tx_context {
 
 BUILD_ASSERT(ETH_STM32_RX_BUF_SIZE % 4 == 0, "Rx buffer size must be a multiple of 4");
 
-extern uint8_t dma_rx_buffer[ETH_RXBUFNB][ETH_STM32_RX_BUF_SIZE] __eth_stm32_buf;
-extern uint8_t dma_tx_buffer[ETH_TXBUFNB][ETH_STM32_TX_BUF_SIZE] __eth_stm32_buf;
+extern uint8_t dma_rx_buffer[ETH_RXBUFNB][ETH_STM32_RX_BUF_SIZE];
+extern uint8_t dma_tx_buffer[ETH_TXBUFNB][ETH_STM32_TX_BUF_SIZE];
 
 #if DT_HAS_COMPAT_STATUS_OKAY(st_stm32n6_ethernet)
-extern ETH_DMADescTypeDef dma_rx_desc_tab[ETH_DMA_RX_CH_CNT][ETH_RXBUFNB]
-								ALIGN_32BYTES(__eth_stm32_desc);
-extern ETH_DMADescTypeDef dma_tx_desc_tab[ETH_DMA_TX_CH_CNT][ETH_TXBUFNB]
-								ALIGN_32BYTES(__eth_stm32_desc);
+extern ETH_DMADescTypeDef dma_rx_desc_tab[ETH_DMA_RX_CH_CNT][ETH_RXBUFNB];
+extern ETH_DMADescTypeDef dma_tx_desc_tab[ETH_DMA_TX_CH_CNT][ETH_TXBUFNB];
 #else
-extern ETH_DMADescTypeDef dma_rx_desc_tab[ETH_RXBUFNB] __eth_stm32_desc;
-extern ETH_DMADescTypeDef dma_tx_desc_tab[ETH_TXBUFNB] __eth_stm32_desc;
+extern ETH_DMADescTypeDef dma_rx_desc_tab[ETH_RXBUFNB];
+extern ETH_DMADescTypeDef dma_tx_desc_tab[ETH_TXBUFNB];
 #endif
 
 /* Device constant configuration parameters */