Upgrade xgs SAI version tio 11.2.16.2 (sonic-net#21068)

Why I did it
Upgrade SAI xgs version to 11.2.16.2 to fix sonic-net#20725

Work item tracking
Microsoft ADO (number only): 30445459

How I did it
Update xgs SAI version to 11.2.16.2 in the sai.mk file.

How to verify it
load the built image to the DUT, swss starts fine.

Signed-off-by: zitingguo-ms <[email protected]>

Author: Gfrom2016

platform/broadcom/sai.mk

@@ -1,6 +1,6 @@
-LIBSAIBCM_XGS_VERSION = 11.2.13.1
+LIBSAIBCM_XGS_VERSION = 11.2.16.2
 LIBSAIBCM_DNX_VERSION = 11.2.13.1-1
-LIBSAIBCM_XGS_BRANCH_NAME = SAI_11.2.0_GA
+LIBSAIBCM_XGS_BRANCH_NAME = SAI_11.2.16.2
 LIBSAIBCM_DNX_BRANCH_NAME = SAI_11.2.0_GA
 LIBSAIBCM_XGS_URL_PREFIX = "https://sonicstorage.blob.core.windows.net/public/sai/sai-broadcom/$(LIBSAIBCM_XGS_BRANCH_NAME)/$(LIBSAIBCM_XGS_VERSION)/xgs"
 LIBSAIBCM_DNX_URL_PREFIX = "https://sonicstorage.blob.core.windows.net/public/sai/sai-broadcom/$(LIBSAIBCM_DNX_BRANCH_NAME)/$(LIBSAIBCM_DNX_VERSION)/dnx"