ANDROID: GKI: update allowed GKI symbol for Exynosauto SoC

- Removed 2 functions no longer used from Exynosauto SoC

Leaf changes summary: 7 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 2 Removed, 0 Changed, 5 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

2 Removed functions:

  [D] 'function int of_get_drm_display_mode(device_node*, drm_display_mode*, u32*, int)'
  [D] 'function int ufshcd_init(ufs_hba*, void*, unsigned int)'

5 Added functions:

  [A] 'function dma_status dma_sync_wait(dma_chan*, dma_cookie_t)'
  [A] 'function dmaengine_unmap_data* dmaengine_get_unmap_data(device*, int, gfp_t)'
  [A] 'function int drm_connector_set_path_property(drm_connector*, const char*)'
  [A] 'function int drm_helper_probe_detect(drm_connector*, drm_modeset_acquire_ctx*, bool)'
  [A] 'function int of_graph_get_endpoint_count(const device_node*)'

Bug: 193391505
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Change-Id: Iba127a26dc84f1399042ec6048bbd5a9ceaeebe8