Addition of I2S nodes

Signed-off-by: Franck Thebault <franck.thebault@st.com>
Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>

Test on STM32H573i disco board , only the Tx transfer is ok.

Signed-off-by: Franck Thebault <franck.thebault@st.com>
Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>

Add flag STM32_DMA_16BITS as a combination of
STM32_DMA_PERIPH_16BITS and STM32_DMA_MEM_16BITS

Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>

In i2s_stm32_isr, remove the errors from SR register
   i2s_stm32_configure, enable the rx path for H7 I2S compatible IP

Signed-off-by: Franck Thebault <franck.thebault@st.com>
Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>

In dma_stm32_reload, the size is the number of bytes and not number
of elements.

Signed-off-by: Franck Thebault <franck.thebault@st.com>
Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>

Add the function ll_func_i2s_dma_busy to be able to check the
transmission of all the DMA TX packet.

Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>

Correction of the handling of Tx audio samples via DMA

Signed-off-by: Franck Thebault <franck.thebault@st.com>
Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>

Add a k_busy_wait to the function tx_stream_disable
to be able to complete the drain of the TX queue before disabling.

Signed-off-by: IBEN EL HADJ MESSAOUD Marwa <marwa.ibenelhadjmessaoud-ext@st.com>