Work around basic block creation for switch opcodes

[reox]

It looks like that some specifications were not fulfilled
like aligned code.
This should work now, and if not there should be a warning.

[codecov-io]

Codecov Report

Merging #677 into master will decrease coverage by <.01%.
The diff coverage is 80%.

@@            Coverage Diff             @@
##           master     #677      +/-   ##
==========================================
- Coverage   72.29%   72.29%   -0.01%     
==========================================
  Files          49       49              
  Lines       16002    16004       +2     
==========================================
+ Hits        11569    11570       +1     
- Misses       4433     4434       +1

Impacted Files	Coverage Δ
androguard/core/analysis/analysis.py	77.38% <100%> (+0.14%)	⬆️
androguard/core/bytecodes/dvm.py	62.52% <76.92%> (-0.03%)	⬇️

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