L1Seeds updates to Enhanced Bias menu

Updates to the Enhanced Bias seeds

• remove L1_gXEJWOJ100 from PhysicsHigh - it's already in the medium and it's prescaled
• add back L1_eEM18M_2cTAU20M_jXE70

related to ATR-29894

tagging @lidiaz @gipezzul @alhroob