Exclude some variables from signaturesfeature_CPDX-3405

SAMPLE_UEFI_SB_KEYS_DIR and SAMPLE_BOOT_KEYS_DIR are
defined in meta-secure-core/meta-signing-key/conf/layer.conf
using ${LAYERDIR}, which changes at each automatic build.
efitools and grub-efi recipes reference the 2 variables.
The variables values change at each build, and this causes
efitools and grub-efi to rebuild.
To avoid the rebuild, exclude the 2 variables from task
signatures.

Change-Id: Ib3c51c14fa1e516b64e16adbee09ab28f2f818a7
Signed-off-by: Matei Valeanu <Matei.Valeanu@enea.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/conf/distro/eneanfvaccess.conf b/conf/distro/eneanfvaccess.conf
index 070bbb8..608c103 100644
--- a/conf/distro/eneanfvaccess.conf
+++ b/conf/distro/eneanfvaccess.conf
@@ -23,3 +23,8 @@ EFI_PREFIX_df-efi-secure-boot = "/boot/efi"
 SBFOLDER = "bootloader"
 
 HOSTTOOLS_append = " scp"
+
+BB_HASHBASE_WHITELIST_append += "\
+    SAMPLE_UEFI_SB_KEYS_DIR \
+    SAMPLE_BOOT_KEYS_DIR \
+"