mx8dx: Normalize MACHINEOVERRIDES implementation

The imx8dx-mek machine is similar to imx8qxp-mek and so the mx8qxp override
was included in the MACHINEOVERRIDES hierarchy. This is non-standard, and
the rework of the SOC overrides didn't handle it properly, leading to a
build break:

```
Log data follows:
| DEBUG: Executing shell function do_compile
| NOTE: 8QX boot binary build
| cp: failed to access '/home/aquino/src/ossystems/oel-platform/build/tmp/work/imx8dx_mek-oel-linux/imx-boot/1.0-r0/git/iMX8DX/scfw_tcm.bin': Not a directory
| WARNING: /home/aquino/src/ossystems/oel-platform/build/tmp/work/imx8dx_mek-oel-linux/imx-boot/1.0-r0/temp/run.do_compile.1809636:179 exit 1 from 'cp /home/aquino/src/ossystems/oel-platform/build/tmp/deploy/images/imx8dx-mek/imx-boot$
tools/scfw_tcm.bin /home/aquino/src/ossystems/oel-platform/build/tmp/work/imx8dx_mek-oel-linux/imx-boot/1.0-r0/git/iMX8DX/scfw_tcm.bin'
| WARNING: Backtrace (BB generated script):
|       #1: compile_mx8x, /home/aquino/src/ossystems/oel-platform/build/tmp/work/imx8dx_mek-oel-linux/imx-boot/1.0-r0/temp/run.do_compile.1809636, line 179
|       #2: do_compile, /home/aquino/src/ossystems/oel-platform/build/tmp/work/imx8dx_mek-oel-linux/imx-boot/1.0-r0/temp/run.do_compile.1809636, line 151
|       #3: main, /home/aquino/src/ossystems/oel-platform/build/tmp/work/imx8dx_mek-oel-linux/imx-boot/1.0-r0/temp/run.do_compile.1809636, line 189
ERROR: Task (/home/aquino/src/ossystems/oel-platform/sources/meta-freescale/recipes-bsp/imx-mkimage/imx-boot_1.0.bb:do_compile) failed with exit code '1'
```

Fix the problem by removing mx8qxp from the mx8dx hierarchy and adapting
existing mx8qxp overrides appropriately.

Fixes: #1027
Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/recipes-graphics/imx-gpu-viv/imx-gpu-viv-6.inc b/recipes-graphics/imx-gpu-viv/imx-gpu-viv-6.inc
index 3dd2f55c..7816ec40 100644
--- a/recipes-graphics/imx-gpu-viv/imx-gpu-viv-6.inc
+++ b/recipes-graphics/imx-gpu-viv/imx-gpu-viv-6.inc
@@ -147,9 +147,10 @@ HAS_GBM:mx8-nxp-bsp = "true"
 
 IMX_SOC        = "IMX_SOC_NOT_SET"
 IMX_SOC:mx8qm-nxp-bsp  = "mx8qm"
+IMX_SOC:mx8qxp-nxp-bsp = "mx8qxp"
+IMX_SOC:mx8dx-nxp-bsp  = "mx8qxp"
 IMX_SOC:mx8mp-nxp-bsp  = "mx8mp"
 IMX_SOC:mx8mq-nxp-bsp  = "mx8mq"
-IMX_SOC:mx8qxp-nxp-bsp = "mx8qxp"
 IMX_SOC:mx8mn-nxp-bsp  = "mx8mn"
 IMX_SOC:mx8ulp-nxp-bsp = "mx8ulp"