s390/config: make the vector optimized crc function builtin

For all configs with CONFIG_BTRFS_FS = y we should also make the
optimized crc module builtin. Otherwise early mounts will fall
back to the software variant.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index ccccebe..73610f2 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -234,7 +234,7 @@
 CONFIG_CRYPTO_SHA512_S390=m
 CONFIG_CRYPTO_DES_S390=m
 CONFIG_CRYPTO_AES_S390=m
-CONFIG_CRYPTO_CRC32_S390=m
+CONFIG_CRYPTO_CRC32_S390=y
 CONFIG_CRC7=m
 # CONFIG_XZ_DEC_X86 is not set
 # CONFIG_XZ_DEC_POWERPC is not set