This commit adds new code to support z9100 PFC T1 support with
broadcom recommended MMU settings for PFC feature.
Unit tested the setting by loading sonic-broadcom.bin and checking
the hardware for the values from the JSON file. Added the config.bcm
file th-z9100-32x100G.config.bcm to this folder and updated the
sai.profile file to point to hwsku directory. sai.profile now
points to /usr/share/sonic/hwsku/th-z9100-32x100G.config.bcm
Signed-off-by: Harish Venkatraman <Harish_Venkatraman@dell.com>