Init: Edited postboot scripts for scuba.

Added soc_id = 471 for scuba in init.qcom.debug.sh and
reduced etr size to 16 MB for 32 bit scuba in 
init.qti.debug-scuba.sh .

Change-Id: If729b39df704e8b154811ec20f003a18217d4bca
Signed-off-by: Aniket Puri <puri@codeaurora.org>

rootdir/etc/init.qcom.debug.sh

@@ -2587,7 +2587,7 @@ case "$coresight_config" in
             ;;
             "bengal")
                 soc_id=`cat /sys/devices/soc0/soc_id`
-                if [ "$soc_id" == "441" ]; then
+                if [[ "$soc_id" == "441" || "$soc_id" == "471" ]]; then
                     echo "Enabling DCC/STM/Debug events for scuba"
                     enable_scuba_debug
                     setprop ro.dbg.coresight.stm_cfg_done 1

rootdir/etc/init.qti.debug-scuba.sh

@@ -127,6 +127,9 @@ enable_scuba_stm_events()
     fi
 
     echo $etr_size > /sys/bus/coresight/devices/coresight-tmc-etr/buffer_size
+    if uname -m | grep "armv7l"; then
+        echo 0x1000000 > /sys/bus/coresight/devices/coresight-tmc-etr/buffer_size
+    fi
     echo 1 > /sys/bus/coresight/devices/coresight-tmc-etr/$sinkenable
     echo 1 > /sys/bus/coresight/devices/coresight-stm/$srcenable
     echo 1 > /sys/kernel/debug/tracing/tracing_on