meta-agl-bsp: Update i.MX8MQ EVK support for kirkstone

Changes:
- Rename machine template and related files to use imx8mq-evk instead
  of imx8mqevk to match meta-freescale change.
- Switch to purely using the default "mainline" BSP configuration in
  meta-freescale for imx8mq-evk as opposed to the tweaking of the
  "nxp" configuration previously used.  The mainline configuration now
  builds a working image, and this lowers maintenance on our part.
- Remove imx8mqevk-viv configuration to build with Vivante GPU driver.
  NXP have not yet released Weston 10 support, and at this point the
  etnaviv driver is stable.  If a demonstration of support of Vivante
  is requested in the future (e.g. for other i.MX8 variants that still
  require it), this can be revisited.

Bug-AGL: SPEC-3819

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I7e279268463f68978ecd2990927aab6d64e3cbd2

1 files changed, 13 insertions, 0 deletions

diff --git a/templates/machine/imx8mq-evk/README_machine_imx8mq-evk.md b/templates/machine/imx8mq-evk/README_machine_imx8mq-evk.md
new file mode 100644
index 000000000..ea9ddacce
--- /dev/null
+++ b/templates/machine/imx8mq-evk/README_machine_imx8mq-evk.md
@@ -0,0 +1,13 @@
+---
+description: i.MX8MQ EVK with etnaviv GPU driver
+authors: Scott Murray <scott.murray@konsulko.com>
+---
+
+### Machine imx8mq-evk
+
+i.MX8MQ EVK and EVKB boards with etnaviv GPU driver support.
+Note that etnaviv on the GC7000L GPU in the i.MX8MQ is currently still
+a work in progress, the imx8mq-evk-viv template using the NXP Vivante
+driver may be a better choice for those not interested in etnaviv
+debugging and development.
+