Add JDK 8 ABI detection to ARM GNU/Linux shared library loading.

JDK 8 ARM systems will try to load:
lib*armgnueabi.so -> 32bit ARM GNU softfp EABI
lib*armgnueabihf.so -> 32bit ARM GNU hard float EABI
lib*armandroideabi.so -> 32bit Android EABI

JDK 6/7 ARM systems will try to load:
lib*arm.so -> 32bit ARM unknown ABI.

Signed-off-by: Xerxes Rånby <xerxes@zafena.se>