[GLES2] Fixed a typo in two sided lighting of FPE
[GLES2] Fixed a typo in two sided lighting of FPE

ptitSeb/glshim,ptitSeb/glshim,ptitSeb/gl4es,ptitSeb/gl4es,ptitSeb/glshim,ptitSeb/glshim,ptitSeb/gl4es,ptitSeb/gl4es