[broadcom]: upgrade SAI to 3.1.3.5-8 (#2028)

Fix get_fdb_entry_attribute bridge port ID [Shuotian Cheng]

Signed-off-by: Guohan Lu <gulv@microsoft.com>

platform/broadcom/sai.mk

@@ -1,9 +1,9 @@
-BRCM_SAI = libsaibcm_3.1.3.5-7_amd64.deb
-$(BRCM_SAI)_URL = "https://sonicstorage.blob.core.windows.net/packages/bcmsai/libsaibcm_3.1.3.5-7_amd64.deb?sv=2015-04-05&sr=b&sig=0FaCT4a%2B07%2FkMIqZQF8NKk3UQL%2BU5M9icfe23F6rThY%3D&se=2155-07-10T08%3A53%3A11Z&sp=r"
+BRCM_SAI = libsaibcm_3.1.3.5-8_amd64.deb
+$(BRCM_SAI)_URL = "https://sonicstorage.blob.core.windows.net/packages/bcmsai/libsaibcm_3.1.3.5-8_amd64.deb?sv=2015-04-05&sr=b&sig=vM4LXDn4RIIxfK6lNL2mkEAnSPyaNgEH2QAfHSySMEg%3D&se=2155-07-31T18%3A43%3A06Z&sp=r"
 
-BRCM_SAI_DEV = libsaibcm-dev_3.1.3.5-7_amd64.deb
+BRCM_SAI_DEV = libsaibcm-dev_3.1.3.5-8_amd64.deb
 $(eval $(call add_derived_package,$(BRCM_SAI),$(BRCM_SAI_DEV)))
-$(BRCM_SAI_DEV)_URL = "https://sonicstorage.blob.core.windows.net/packages/bcmsai/libsaibcm-dev_3.1.3.5-7_amd64.deb?sv=2015-04-05&sr=b&sig=aTEosIZH90NExzK3opDzVFB%2FhWATEggoxKaTYudoR3I%3D&se=2155-07-10T08%3A53%3A39Z&sp=r"
+$(BRCM_SAI_DEV)_URL = "https://sonicstorage.blob.core.windows.net/packages/bcmsai/libsaibcm-dev_3.1.3.5-8_amd64.deb?sv=2015-04-05&sr=b&sig=ehMedaC6GDviSVEhsCygfLS%2FG9gijkBjZT2y5WxByls%3D&se=2155-07-31T18%3A36%3A17Z&sp=r"
 
 SONIC_ONLINE_DEBS += $(BRCM_SAI) $(BRCM_SAI_DEV)
 $(BRCM_SAI_DEV)_DEPENDS += $(BRCM_SAI)