sato-icon-theme: fix build

sato-icon-theme: fix build

| Can't locate XML/Simple.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /home/andreas/tmp/oe-core-eglibc/sysroots/x86_64-linux/usr/lib/icon-naming-utils/icon-name-mapping line 12.
| BEGIN failed--compilation aborted at /home/andreas/tmp/oe-core-eglibc/sysroots/x86_64-linux/usr/lib/icon-naming-utils/icon-name-mapping line 12.
| make[3]: *** [install-data-local] Error 2
| make[3]: Leaving directory `/home/andreas/tmp/oe-core-eglibc/work/all-angstrom-linux/sato-icon-theme-0.4.1-r5/sato-icon-theme-0.4.1/16x16/actions'
| make[2]: *** [install-am] Error 2
| make[2]: Leaving directory `/home/andreas/tmp/oe-core-eglibc/work/all-angstrom-linux/sato-icon-theme-0.4.1-r5/sato-icon-theme-0.4.1/16x16/actions'
| make[1]: *** [install-recursive] Error 1
| make[1]: Leaving directory `/home/andreas/tmp/oe-core-eglibc/work/all-angstrom-linux/sato-icon-theme-0.4.1-r5/sato-icon-theme-0.4.1/16x16'
| make: *** [install-recursive] Error 1
| ERROR: oe_runmake failed
| ERROR: Function failed: do_install (see /home/andreas/tmp/oe-core-eglibc/work/all-angstrom-linux/sato-icon-theme-0.4.1-r5/temp/log.do_install.21502 for further information)

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>