packagegroup: Fixed allarch packagegroup error

Some recipes are renamed based on the device arch.
To prevent this, the arch must be set before including the packagegroup
class.

recipes-bsp/packagegroups/packagegroup-guf-debug.bb

 DESCRIPTION = "SECO Northern Europe debugging tools packagegroup"
 
+# Prevents the dynamic renaming of packages
+# (which throws an error in newer Bitbake versions)
+PACKAGE_ARCH = "${TUNE_PKGARCH}"
+
 inherit packagegroup
 
 PACKAGES = " \

recipes-bsp/packagegroups/packagegroup-guf-small.bb

 DESCRIPTION = "SECO Northern Europe image contents for small images"
 
+# Prevents the dynamic renaming of packages
+# (which throws an error in newer Bitbake versions)
+PACKAGE_ARCH = "${TUNE_PKGARCH}"
+
 inherit packagegroup on_bootloader
 
 PACKAGES = " \