devel/riscv64-none-elf-gcc: Fix PLIST

• Bump PORTREVISION for package change

> Checking for pkg-plist issues (check-plist)

> Parsing plist

> Checking for items in STAGEDIR missing from pkg-plist

Error: Orphaned: lib/gcc/%%GCC_TARGET%%/%%GCC_VERSION%%/rv64imafdc/lp64d/crtbegin.o
Error: Orphaned: lib/gcc/%%GCC_TARGET%%/%%GCC_VERSION%%/rv64imafdc/lp64d/crtend.o
Error: Orphaned: lib/gcc/%%GCC_TARGET%%/%%GCC_VERSION%%/rv64imafdc/lp64d/crti.o
Error: Orphaned: lib/gcc/%%GCC_TARGET%%/%%GCC_VERSION%%/rv64imafdc/lp64d/crtn.o
Error: Orphaned: lib/gcc/%%GCC_TARGET%%/%%GCC_VERSION%%/rv64imafdc/lp64d/libgcc.a
Error: Orphaned: lib/gcc/%%GCC_TARGET%%/%%GCC_VERSION%%/rv64imafdc/lp64d/libgcov.a

> Checking for items in pkg-plist which are not in STAGEDIR

> Error: Plist issues found.

• Error code 1

Approved by: portmgr (blanket)