BoardConfig: enable cma_sysfs

Bug: 179256052
Test: confirmed /sys/kernel/mm/cma/reserved/alloc_pages_success works
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Ib24f1ecabdc199bf9e8a2c0ac7dba778a40c1cf9
diff --git a/BoardConfig-common.mk b/BoardConfig-common.mk
index c055d1a..0e049c6 100644
--- a/BoardConfig-common.mk
+++ b/BoardConfig-common.mk
@@ -44,6 +44,7 @@
 BOARD_KERNEL_CMDLINE += dyndbg=\"func alloc_contig_dump_pages +p\"
 BOARD_KERNEL_CMDLINE += earlycon=exynos4210,0x10A00000 console=ttySAC0,115200 androidboot.console=ttySAC0 printk.devkmsg=on
 BOARD_BOOTCONFIG += androidboot.boot_devices=14700000.ufs
+BOARD_KERNEL_CMDLINE += cma_sysfs.experimental=Y
 
 TARGET_NO_BOOTLOADER := true
 TARGET_NO_KERNEL := false