entropy: fix return value for getrandom() branch
entropy: fix return value for getrandom() branch

mgjv/libusual,markokr/libusual,markokr/libusual,ifduyue/libusual,mgjv/libusual,ifduyue/libusual,mgjv/libusual,rabbitt/libusual,rabbitt/libusual,ifduyue/libusual,rabbitt/libusual,markokr/libusual,markokr/libusual,rabbitt/libusual,ifduyue/libusual,mgjv/libusual