init: split S95hello into two to accommodate upcoming bmcd

Prior to this change, script S95hello.sh would:

1. mount sdcard
2. call scripts
3. print ASCII art
4. launch bmc daemon

However, the new version of BMC daemon (aptly named bmcd) which warrants
its own proper startup script, needs to launch after steps 1-2, but
prior to ASCII-art being printed.

Split steps 1-2 and 3 into their own scripts, with priorities 93 and 99
respectively, and remove redundant .sh suffix. The new daemon will start
at priority 94. User-defined scripts can run on priorities 95-98.

The ASCII-art could be moved to /etc/issue by using a post-build.sh
script, however this would cause the art to be printed several times
on boot and login.

tp2bmc/board/tp2bmc/overlay/etc/init.d/S95hello.sh → tp2bmc/board/tp2bmc/overlay/etc/init.d/S93startup

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-start() {
+if [ "$1" = "start" ]; then
     mkdir -p /mnt/sdcard
 
     if [ -b /dev/mmcblk0p1 ]; then
@@ -9,12 +9,6 @@ start() {
         mount /dev/mmcblk0 /mnt/sdcard
     fi
 
-    echo " _____ _   _ ____  ___ _   _  ____ "
-    echo "|_   _| | | |  _ \|_ _| \ | |/ ___|"
-    echo "  | | | | | | |_) || ||  \| | |  _ "
-    echo "  | | | |_| |  _ < | || |\  | |_| |"
-    echo "  |_|  \___/|_| \_\___|_| \_|\____|"
-
     echo 3 4 1 7 > /proc/sys/kernel/printk
 
     sleep 1
@@ -23,8 +17,4 @@ start() {
     bmc &
 
     /etc/test_ping.sh &
-}
-
-if [ "$1" = "start" ]; then
-    start
 fi

tp2bmc/board/tp2bmc/overlay/etc/init.d/S99hello

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+if [ "$1" = "start" ]; then
+    echo " _____ _   _ ____  ___ _   _  ____ "
+    echo "|_   _| | | |  _ \|_ _| \ | |/ ___|"
+    echo "  | | | | | | |_) || ||  \| | |  _ "
+    echo "  | | | |_| |  _ < | || |\  | |_| |"
+    echo "  |_|  \___/|_| \_\___|_| \_|\____|"
+fi