lcd: expand console api

lcd: expand console api

Introduce set_console_row(), set_console_col(), and lcd_init_console().
Use these functions in lcd functions: lcd_init(), lcd_clear(), lcd_logo().

This is a preparatory step for extracting lcd console code into its own
file.

Signed-off-by: Nikita Kiryanov <[email protected]>
Cc: Anatolij Gustschin <[email protected]>
Cc: Simon Glass <[email protected]>
Acked-by: Simon Glass <[email protected]>
Tested-by: Simon Glass <[email protected]>