apex-monitor: Remove usage of "mosys platform sku" command

The "mosys platform sku" command is deprecated and can be replaced by
"crosid -f SKU".

BUG=b:187790074
TEST=CQ passes

Change-Id: I4c8f2d50d58a4cffd7fa675cff53260dfa3053bf
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/cfm-device-monitor/+/4010539
Auto-Submit: Jack Rosenthal <jrosenth@chromium.org>
Tested-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Pablo Ceballos <pceballos@chromium.org>
Commit-Queue: Pablo Ceballos <pceballos@chromium.org>
diff --git a/init/apex-monitor.conf b/init/apex-monitor.conf
index 2f77395..62599ad 100644
--- a/init/apex-monitor.conf
+++ b/init/apex-monitor.conf
@@ -13,7 +13,7 @@
 
 pre-start script
   BOARD=$(grep CHROMEOS_RELEASE_BOARD /etc/lsb-release | cut -d '=' -f 2)
-  OEM=$(mosys platform sku)
+  OEM=$(crosid -f SKU)
   i2c_bus=$(ls /sys/bus/pci/devices/0000:00:15.2/i2c_designware.1 | grep i2c)
   if [ ${BOARD} != fizz -o ${OEM} != 6 ]; then
     # If not Bleemo device, stop here.
@@ -53,7 +53,7 @@
 
 post-stop script
   BOARD=$(grep CHROMEOS_RELEASE_BOARD /etc/lsb-release | cut -d '=' -f 2)
-  OEM=$(mosys platform sku)
+  OEM=$(crosid -f SKU)
   if [ ${BOARD} = fizz -o ${OEM} = 6 ]; then
     echo 404 > /sys/class/gpio/unexport
     echo 416 > /sys/class/gpio/unexport