Fix crash when bluetooth is turned off while connecting.

When msm_gpiomux_get() fails, do not attempt to msm_gpiomux_put() on the
failing index.

Conflicts:
	lge/lge_board/i_atnt/platform_i_atnt_bt.c
	lge/lge_board/i_dcm/platform_i_dcm_bt.c
	lge/lge_board/i_lgu/platform_i_lgu_bt.c
	lge/lge_board/i_skt/platform_i_skt_bt.c
	lge/lge_board/i_vzw/platform_i_vzw_bt.c