ext2: Enable posix ACLs

This helps setting up permissions on /boot.
Signed-off-by: Guido Günther <guido.gunther@puri.sm>

arch/arm64/configs/librem5-evk_defconfig

@@ -4877,9 +4877,11 @@ CONFIG_ACPI_PPTT=y
 CONFIG_DCACHE_WORD_ACCESS=y
 CONFIG_FS_IOMAP=y
 CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
 CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
+CONFIG_EXT3_FS_POSIX_ACL=y
 # CONFIG_EXT3_FS_SECURITY is not set
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y