Add hdparm to installed packages on live-env

Some modern HDD come with agressive APM settings by default,
not only "green ready" drive also "high end" drives.

Adding hdparm so users can change/disable hdd settings (mostly -B -S -M).
Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

configs/syslinux-iso/packages.i686

@@ -10,6 +10,7 @@ dnsutils
 dosfstools
 elinks
 gnu-netcat
+hdparm
 inetutils
 ipw2100-fw
 ipw2200-fw

configs/syslinux-iso/packages.x86_64

@@ -10,6 +10,7 @@ dnsutils
 dosfstools
 elinks
 gnu-netcat
+hdparm
 inetutils
 ipw2100-fw
 ipw2200-fw