Use stp/ldp while calling native functions in arm64

Conceptually this improves the performance and reduces the odex
image size. Test result in Clark with WITH_DEX_PREOPT=true shows
it saves the image size by 7.1M (or 0.2%), and improves the
CaffeineMark score by 4.3%

Change-Id: I255e360f9b83abc9734b5082b284898cb5c08515
Reviewed-on: http://gerrit.mot.com/792312
SME-Granted: SME Approvals Granted
Reviewed-by: Ye Ouyang <yeouyang@motorola.com>
Tested-by: Jira Key <jirakey@motorola.com>
Reviewed-by: Xin Guan <a18772@motorola.com>
SLTApproved: Xin Guan <a18772@motorola.com>
Reviewed-by: Udayan Banerji <ubanerji@motorola.com>
Submit-Approved: Jira Key <jirakey@motorola.com>
Reviewed-on: http://gerrit.mot.com/859133
SLTApproved: Slta Waiver <sltawvr@motorola.com>
Reviewed-on: https://gerrit.mot.com/1023833
SLTApproved: Slta Waiver
Reviewed-by: Jing Ji <a5705c@motorola.com>
SLTApproved: Ye Ouyang <yeouyang@motorola.com>
SME-Granted: Ye Ouyang <yeouyang@motorola.com>
Submit-Approved: Ye Ouyang <yeouyang@motorola.com>
Tested-by: Ye Ouyang <yeouyang@motorola.com>
Reviewed-on: https://gerrit.mot.com/1357112
Reviewed-by: Maoyuan Wu <wumy@motorola.com>
Submit-Approved: Maoyuan Wu <wumy@motorola.com>
Tested-by: Maoyuan Wu <wumy@motorola.com>
Reviewed-on: https://gerrit.mot.com/1666338
Signed-off-by: Juhyung Park <qkrwngud825@gmail.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
4 files changed