sounds: Add Swedish sounds to Makefile and XML

Added the necessary lines to the Makefile and sounds.xml so we'll have the
Swedish sounds in all available formats in menuselect.

See also: Swedish sounds were added into the core sounds release 1.4.27.

ASTERISK-24744 #close

Reported by: Tove Hjelm
Tested by: Rusty Newton

Change-Id: Ib6f4fd177afd1667b2402735034001d4d055a908