ANDROID: GKI: Add symbol list for Nothing

Add symbol list for Nothing at the first time

2 function symbol(s) added
  'struct file_system_type* get_fs_type(const char*)'
  'void iterate_supers_type(struct file_system_type*, void(*)(struct super_block*, void*), void*)'

Bug: 321604034
Change-Id: I3cdf16cf21bf04df2c0ab10358e7e7da4e99ccd3
Signed-off-by: Dylan Chang <dylan.chang@nothing.tech>