fastboot: quicker enter into fastboot mode and pinmux update for v2
fastboot: quicker enter into fastboot mode and pinmux update for v2

1. Enter into fastboot mode by choosing Jumper 5~6.
2. Updated pinmux for v2, fixed WL1837 problem

2017-01-20 Change-Id: I771cc089ed13fc93bd8f96ac7e151a8212c0a91c

GPIO_068_SEL value to determine whether enter fastboot mode or normal boot.

2017-01-22 Change-Id: I913a9d9d341260c73b7305844050ce18d5886320

Hikey960v2 BT GPIO config not correct.

Signed-off-by: Guodong Xu <b3884af94c883a0fcbed2dca23baa11b986f7134@linaro.org>

96boards-hikey/tools-images-hikey960,96boards-hikey/tools-images-hikey960