Tapeout: DRC errors in Tile_MemCore

[steveri]

On r7arm-aha machine, see errors listed in e.g.
/sim/steveri/tmpdir/drc_mem/failing_summary_Tile_MemCore.txt
(also included below).

You should be able to duplicate the errors by following the instructions in
/sim/steveri/garnet/tapeout_16/drc/README.txt

RULECHECK OPTION.COD_CHECK:WARNING .................... TOTAL Result Count = 1 (1)
RULECHECK IO_CONNECT_CORE_NET_VOLTAGE_IS_CORE:WARNING . TOTAL Result Count = 1 (1)
RULECHECK VIA0.R.4 .................................... TOTAL Result Count = 1 (1)
RULECHECK M1.G0.1__M1.G0.2__M1.G0.3 ................... TOTAL Result Count = 1 (1)
TOTAL DFM RDB Result Count = 30 (35)
TOTAL DFM RDB Result Count = 36 (41)
TOTAL DFM RDB Result Count = 28 (33)
RULECHECK VIA6.S.1 .................................... TOTAL Result Count = 1 (1)
RULECHECK VIA6.S.4 .................................... TOTAL Result Count = 1 (1)
RULECHECK VIA6.S.4.1 .................................. TOTAL Result Count = 1 (1)
RULECHECK VIA6.S.5 .................................... TOTAL Result Count = 1 (1)
RULECHECK VIA6.S.8 .................................... TOTAL Result Count = 1 (1)
RULECHECK SRAM.WARN.1.1 ............................... TOTAL Result Count = 1 (1)