ANDROID: GKI: Update symbol list for Amlogic

2 function symbol(s) added
  'int spi_add_device(struct spi_device*)'
  'void spi_unregister_device(struct spi_device*)'

Bug: 365477006
Change-Id: I448a2de651113f6dcfe1f46a2c4c88c0d747a3ae
Signed-off-by: Qinglin Li <qinglin.li@amlogic.com>