devel/gcc-arm-embedded: Remove unnecessary LIB_DEPENDS on libelf
Also:
- added missing plist entries
- add missing gettext-runtime to USES
- corrected minor spelling mistake
PR: 220782
Submitted by: Jonathan Chen <jonc@chen.org.nz>
Approved by: portmgr (maintainer timeout, 2 weeks)
MFH: 2017Q3