net: emaclite: Fix missing pointer increment in aligned_read()

[ Upstream commit 7727ec1523d7973defa1dff8f9c0aad288d04008 ]

Add missing post-increment operators for byte pointers in the
loop that copies remaining bytes in xemaclite_aligned_read().
Without the increment, the same byte was written repeatedly
to the destination.
This update aligns with xemaclite_aligned_write()

Fixes: bb81b2ddfa ("net: add Xilinx emac lite device driver")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Link: https://patch.msgid.link/20250710173849.2381003-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/net/ethernet/xilinx/xilinx_emaclite.c

@@ -285,7 +285,7 @@ static void xemaclite_aligned_read(u32 *src_ptr, u8 *dest_ptr,
 
 		/* Read the remaining data */
 		for (; length > 0; length--)
-			*to_u8_ptr = *from_u8_ptr;
+			*to_u8_ptr++ = *from_u8_ptr++;
 	}
 }