[Marvell] Update arm64 sai debian (sonic-net#15602)

- SAI-1.12.0 support

Signed-off-by: rajkumar38 <rpennadamram@marvell.com>

Author: rajkumar38

platform/marvell-arm64/sai.mk

@@ -1,6 +1,6 @@
 # Marvell SAI
 
-export MRVL_SAI_VERSION = 1.11.0-1
+export MRVL_SAI_VERSION = 1.12.0-1
 export MRVL_SAI = mrvllibsai_$(MRVL_SAI_VERSION)_$(PLATFORM_ARCH).deb
 
 $(MRVL_SAI)_SRC_PATH = $(PLATFORM_PATH)/sai