cmd: ufetch: use 3-bit colour ANSI codes

Currently, the 8-bit escapes are being used, which aren't supported by
vidconsole_escape_char. Since the current usage maps directly to the
3-bit equivalents anyway, let's use those instead.

With this change, the fetch output looks as fetching in the vidconsole
as it does over serial!

Signed-off-by: Sam Day <me@samcday.com>
Tested-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
Tested-by: Ferass El Hafidi <funderscore@postmarketos.org>

cmd/ufetch.c

@@ -24,8 +24,8 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 #define LINE_WIDTH 40
-#define BLUE "\033[38;5;4m"
-#define YELLOW "\033[38;5;11m"
+#define BLUE "\033[34m"
+#define YELLOW "\033[33m"
 #define BOLD "\033[1m"
 #define RESET "\033[0m"
 static const char * const logo_lines[] = {