Fix crash in lib_mp3_enc_arm12_elinux.so
This crash error is caused by division by zero
in noOfElements_mp3e() function When encoding 0
size file by using unit test
so before performing a division operation, need to
check whether divisor is zero or not to fix it.
Signed-off-by: Yuqing Zhu <carol.zhu@nxp.com> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>