lib: sbi: Add ' ' '\'' flags for print

The space flag is used to add a space before positive numbers, and
apostrophe is used to print the thousand separator. Add code to
ignore these two flags

Signed-off-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

lib/sbi/sbi_console.c

@@ -288,6 +288,10 @@ static int print(char **out, u32 *out_len, const char *format, va_list args)
 				case '0':
 					flags |= PAD_ZERO;
 					break;
+				case ' ':
+				case '\'':
+					/* Ignored flags, do nothing */
+					break;
 				default:
 					flags_done = true;
 					break;