ANDROID: GKI: add allowed list for Exynosauto SoC

This patch adds GKI symbol list for Exynosauto SoC. We need to add
below 2 functions to GKI allowed symbol list.

snd_pcm_release_substream
- It's necessary from suspend/resume callback to clean current pcm stream.

unmap_kernel_range
- To unmap which are allocated by map_vm_area

Leaf changes summary: 2 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 2 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

2 Added functions:

  [A] 'function void snd_pcm_release_substream(snd_pcm_substream*)'
  [A] 'function void unmap_kernel_range(unsigned long int, unsigned long int)'

Bug: 174288561
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Change-Id: I71058d55bbe10f2ec075e4c2c40291e5357b13a7