flow: design: ihp-sg13g2: i2c-gpio-expander: Enable Multi Corner

Enable multi corner analysis for the I2C GPIO Expander by adding
the slow and fast corners to the config.mk file.

Signed-off-by: Daniel Schultz <[email protected]>

Author: dnltz

flow/designs/ihp-sg13g2/i2c-gpio-expander/config.mk

@@ -3,7 +3,7 @@ export DESIGN_NICKNAME = i2c-gpio-expander
 export PLATFORM = ihp-sg13g2
 
 export VERILOG_FILES = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/$(DESIGN_NAME).v \
-                       $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/I2cGpioExpander.v 
+                       $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/I2cGpioExpander.v
 export SDC_FILE = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.sdc
 
 export SEAL_GDS = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/sealring.gds.gz
@@ -16,5 +16,7 @@ export MAX_ROUTING_LAYER = TopMetal2
 export TNS_END_PERCENT = 100
 export PLACE_DENSITY = 0.75
 
+export CORNERS = slow fast
+
 export FOOTPRINT_TCL = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/pad.tcl
 export PDN_TCL = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/pdn.tcl