Issue #1050 tune/reduce memory allocation for EFAP

• Related issues: #1050 (closed)
• Requested reviewers: @vaclav

Reason why this change is needed

• The memory of the EFAP handle in the discrete ISM decoder seems to be only party used.

Description of the change

• Describe what is done.

Affected operating points

• Outputs using EFAP
• Memory optimization, should be BE

Related to #1050 (closed)