ANDROID: GKI: Add mtktv ABI symbol list, pwm, serial and snd

22 function symbol(s) added
  'void pwm_free(struct pwm_device*)'
  'struct pwm_device* pwm_request(int, const char*)'
  'void serial8250_do_pm(struct uart_port*, unsigned int, unsigned int)'
  'void serial8250_do_set_termios(struct uart_port*, struct ktermios*, struct ktermios*)'
  'void serial8250_do_shutdown(struct uart_port*)'
  'int serial8250_do_startup(struct uart_port*)'
  'struct uart_8250_port* serial8250_get_port(int)'
  'unsigned int serial8250_modem_status(struct uart_8250_port*)'
  'int serial8250_register_8250_port(const struct uart_8250_port*)'
  'void serial8250_resume_port(int)'
  'void serial8250_rpm_get(struct uart_8250_port*)'
  'void serial8250_rpm_put(struct uart_8250_port*)'
  'void serial8250_rpm_put_tx(struct uart_8250_port*)'
  'unsigned char serial8250_rx_chars(struct uart_8250_port*, unsigned char)'
  'void serial8250_suspend_port(int)'
  'void serial8250_tx_chars(struct uart_8250_port*)'
  'void serial8250_unregister_port(int)'
  'bool sk_capable(const struct sock*, int)'
  'int snd_compress_new(struct snd_card*, int, int, const char*, struct snd_compr*)'
  'struct snd_kcontrol* snd_ctl_find_id(struct snd_card*, struct snd_ctl_elem_id*)'
  'int snd_pcm_format_big_endian(snd_pcm_format_t)'
  'const char* snd_pcm_format_name(snd_pcm_format_t)'

Bug: 293831482
Change-Id: I4b664a3b232f0a038ed59ec523f09eab3e3506cc
Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>