Change ALOGE to ALOGV for request pointer logging.

Vendor implementation of ACameraDevice was incorrectly logging debug
log with an ALOGE. This CL changes it to ALOGV instead which should
be compiled out of release builds.

Bug: 362556086
Test: N/A Logging changes only.
Flag: EXEMPT. Logging only change.
Change-Id: Ib2c394137b6a607024c026624aba7b7ae28c5974