config: enable EROFS xattr and security support on x86_64

Add CONFIG_EROFS_FS_XATTR and CONFIG_EROFS_FS_SECURITY to the x86_64
kernel config, aligning it with aarch64 and riscv64 which already have
these enabled.

Required for trusted.overlay.opaque xattr (used by overlayfs for opaque
directory markers) and security.* xattrs on EROFS filesystems.

Author: appcypher

config-libkrunfw_x86_64

@@ -1632,6 +1632,8 @@ CONFIG_FS_DAX=y
 CONFIG_FS_DAX_PMD=y
 CONFIG_FS_POSIX_ACL=y
 CONFIG_EROFS_FS=y
+CONFIG_EROFS_FS_XATTR=y
+CONFIG_EROFS_FS_SECURITY=y
 CONFIG_EXPORTFS=y
 # CONFIG_EXPORTFS_BLOCK_OPS is not set
 CONFIG_FILE_LOCKING=y