[Fix and force linux-libc-headers to v5.4]

[Description]
Fix and force linux-libc-headers to v5.4

[Release-log]
N/A

diff --git a/conf/machine/filogic830-32bit.conf b/conf/machine/filogic830-32bit.conf
index c1568d1..133cc4a 100644
--- a/conf/machine/filogic830-32bit.conf
+++ b/conf/machine/filogic830-32bit.conf
@@ -16,6 +16,7 @@
 PREFERRED_VERSION_php_dunfell = "7.1.%"
 PREFERRED_VERSION_php-native_dunfell = "7.1.%"
 
+PREFERRED_VERSION_linux-libc-headers = "5.4"
 PREFERRED_PROVIDER_hal-wifi = "hal-wifi-cfg80211"
 PREFERRED_VERSION_iw_filogic = "5.%"
 
diff --git a/conf/machine/filogic830.conf b/conf/machine/filogic830.conf
index 8298abd..0999a3b 100644
--- a/conf/machine/filogic830.conf
+++ b/conf/machine/filogic830.conf
@@ -16,6 +16,7 @@
 PREFERRED_VERSION_php_dunfell = "7.1.%"
 PREFERRED_VERSION_php-native_dunfell = "7.1.%"
 
+PREFERRED_VERSION_linux-libc-headers = "5.4"
 PREFERRED_PROVIDER_hal-wifi = "hal-wifi-cfg80211"
 PREFERRED_VERSION_iw_filogic = "5.%"