Correct version for binutils 2.43 NEWS entries.

Change 2.42 to 2.43 for binutils 2.43 NEWS entries.

binutils/

	* NEWS: Change 2.42 to 2.43 for 2.43 NEWS entries.

ld/

	* NEWS: Change 2.42 to 2.43 for 2.43 NEWS entries.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>