conf: machine: am69-sk: Create a new am69.inc file

Reusing the j784s4.inc file presents problems as the am69-sk platform
does not support GP.  So copy the j784s4.inc to am69.inc and update
accordingly.

Signed-off-by: Ryan Eatmon <reatmon@ti.com>

meta-ti-bsp/conf/machine/am69-sk.conf

@@ -2,7 +2,7 @@
 #@NAME: AM69 SK
 #@DESCRIPTION: Machine configuration for the TI AM69 SK
 
-require conf/machine/include/j784s4.inc
+require conf/machine/include/am69.inc
 
 TFA_K3_USART = "0x8"
 OPTEE_K3_USART = "0x8"

meta-ti-bsp/conf/machine/include/am69.inc

@@ -0,0 +1,19 @@
+require conf/machine/include/k3.inc
+SOC_FAMILY:append = ":j784s4"
+
+MACHINE_FEATURES += "screen gpu"
+
+require conf/machine/include/mesa-pvr.inc
+PREFERRED_PROVIDER_virtual/gpudriver ?= "ti-img-rogue-driver"
+
+# Default tiboot3.bin on AM69 is for SR1.0 HS-FS
+IMAGE_BOOT_FILES += "tiboot3-j784s4-hs-fs-evm.bin"
+
+# Since default tiboot3.bin on AM69 is for HS-FS, add a version for SR1.0 HS-SE
+IMAGE_BOOT_FILES += "tiboot3-j784s4-hs-evm.bin"
+
+TFA_BOARD = "j784s4"
+
+OPTEEMACHINE = "k3-j784s4"
+
+MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "cadence-mhdp-fw cnm-wave-fw ti-eth-fw"