s390/bitops: use register pair instead of register asm

Get rid of register asm statement and use a register pair.
This allows the compiler to allocate registers on its own.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2021-06-09 22:59:13 +02:00 • committed by Vasily Gorbik
commit 4f38c7aefe