sh_binary_host for 'adb-remount-test.sh'.

"adb-remount-test.sh" is sh_binary,
not cc_prebuilt_binary.

Test: m
Test: cd system/core/fs_mgr; mma

Change-Id: Ie5e2446f87d38905d728e2c5a76f6f02381d10ce
Signed-off-by: jiajia tang <tangjiajia@xiaomi.com>