ANDROID: GKI: update allowed list for incrementalfs.ko

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

1 Added function:

  [A] 'function int sysfs_emit(char*, const char*, ...)'

Bug: 186855533
Test: Builds
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I1dc7fb4da564f7cc0d70e7c1ccf278ab8fc46a80