forked from Mirrors/opensbi

Now that all platforms have been updated to initialize serial console device in early_init(), the sbi_console_init() and console_init() platform callback are redundant hence remove them. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-By: Himanshu Chauhan <hchauhan@ventanamicro.com>