This CL implements the ALCR, add logical 32-bit integer with carry, instruction in the s390 simulator.

Some 64-bit operations in the 4-byte arithmetic section of the s390 simulator have been refactored into a separate function to stay below 500 lines.

R=michael_dawson@ca.ibm.com,jyan@ca.ibm.com,mbrandy@us.ibm.com,joransiu@ca.ibm.com,

BUG=

Review URL: https://codereview.chromium.org/1846673003

Cr-Commit-Position: refs/heads/master@{#35184}