fix(ci): allows to specify BSPDIR from envar

.gitea/workflows/ci.yml

@@ -18,6 +18,7 @@ jobs:
         run: |
           mkdir -p /build/conf
           cp -v build/conf/*.conf  /build/conf/
+          export BSPDIR="$(pwd)"
           cd poky && source oe-init-build-env /build
           cat conf/*.conf
           bitbake core-image-base

build/conf/bblayers.conf

@@ -3,7 +3,7 @@
 POKY_BBLAYERS_CONF_VERSION = "2"
 
 BBPATH = "${TOPDIR}"
-BSPDIR := "${@os.path.abspath(os.path.dirname(d.getVar('FILE', True)) + '/../..')}"
+BSPDIR ?= "${@os.path.abspath(os.path.dirname(d.getVar('FILE', True)) + '/../..')}"
 BBFILES ?= ""
 
 BBLAYERS ?= " \