[U-Boot] "splash: fix splash banner output" and newer llvm-7

[Anatolij Gustschin]

Hi Tom,

On Wed, 30 Oct 2019 09:01:37 -0400
Tom Rini trini at konsulko.com wrote:
...
> +common/splash.c:148:20: error: unused function 'splash_display_banner' [-Werror,-Wunused-function]
> +static inline void splash_display_banner(void) { }
> +                   ^
> +1 error generated.
> +make[2]: *** [common/splash.o] Error 1
> +make[1]: *** [common] Error 2
> +make: *** [sub-make] Error 2
> 
> Can you please take a look?  Thanks!

I'll send a fix soon.

Thanks,

--
Anatolij