Tiny optimization for complier templates for arm.

1. Remove possible bubble in TEMPLATE_STRING_INDEXOF.S
2. Remove 1 instruction and reorder the opcodes
   TEMPLATE_MUL_LONG.S
3. Reorder ldr r2 instruction in TEMPLATE_RETURN.S

(cherry-pick of a2dc68acd954827cdc67929a859354e5ed9b5713.)

Change-Id: I78b9797aff3c2255c5d34a8391b1a94a1b09b613
7 files changed