machine:mx8m:dt: Fixed the devicetrees for mx8mm/mx8mp

In Yocto Kirkstone, we use the 5.15.5 kernel from NXP for the i.MX8 devices. In the kernel repository we moved all G&F and K&K devicetrees to a new folder called seconorth. Edit the machine configurations to reflect this change and build the correct devicetrees.

recipes-kernel/linux/linux-imx-5.15/mx8m-generic-bsp/defconfig

@@ -663,6 +663,7 @@ CONFIG_FSL_EDMA_V3=y
 CONFIG_IMX_SDMA=y
 CONFIG_MV_XOR_V2=y
 CONFIG_MXS_DMA=y
+CONFIG_MXC_PXP_V3=y
 CONFIG_PL330_DMA=y
 CONFIG_QCOM_HIDMA_MGMT=y
 CONFIG_QCOM_HIDMA=y
@@ -671,6 +672,7 @@ CONFIG_DMATEST=y
 CONFIG_DMABUF_HEAPS=y
 CONFIG_DMABUF_HEAPS_SYSTEM=y
 CONFIG_DMABUF_HEAPS_CMA=y
+CONFIG_DMABUF_HEAPS_DSP=y
 CONFIG_UIO=y
 CONFIG_UIO_PCI_GENERIC=y
 CONFIG_UIO_IVSHMEM=y
@@ -818,3 +820,4 @@ CONFIG_CORESIGHT=y
 CONFIG_CORESIGHT_LINK_AND_SINK_TMC=y
 CONFIG_CORESIGHT_SOURCE_ETM4X=y
 CONFIG_MEMTEST=y
+CONFIG_VIDEO_HANTRO=m