msm: camera: Fix out of memory issue

When initialize front sensor, allocating i2c_list failed sometimes
Then camera showed blank screen, so change kzalloc to kvzalloc to
ensure request memory success.

Change-Id: Ifcc5911c5a7eeb05641deed44edb4d96f4aa7e4b
Signed-off-by: guocx4 <guocx4@mt.com>
Reviewed-on: https://gerrit.mot.com/1300923


SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Jian Zhang <zhangjo@motorola.com>
Reviewed-by: Zhenxin Xi <xizx@motorola.com>
Submit-Approved: Jira Key
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>