meson - make evas loader confg install shell be binsh compliant

this shell required bash. not good for example if on some unix systems
like bsd that dont have bash... by defauklt. so make it /bin/sh
compliant shell.

meson/evas_loader_conf.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 original_loader=$1
 filename="$(basename $original_loader)"
@@ -8,11 +8,12 @@ loader_dir="$(dirname $original_loader)"
 loader="$(basename $original_loader)"
 loader_name="$(echo $original_name | cut -f 1 -d '.')"
 
-if [ ${original_loader: -3} == "$ext" ]
+if [ `echo -n ${original_loader} | tail -c 3` == "$ext" ]
   then
     mv "$DESTDIR"/"$original_loader" "$DESTDIR"/"$loader_dir"/"$original_name"
 fi
 
-for x in "${@:2}"; do
+shift
+for x in "$@"; do
   ln -sf "$original_name" "$DESTDIR"/"$loader_dir"/"$loader_name"."$x"
 done