regulator: pv88090: logical vs bitwise AND typo

These were supposed to be bitwise AND instead of logical.  Also kernel
style is for the operator to be on the first line and I removed some
extra parenthesis.

Fixes: c90456e3 ('regulator: pv88090: new regulator driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>