Suppress all output with splashscreen configured only if "splashimage"

is set

CHANGELOG

@@ -2,6 +2,9 @@
 Changes for U-Boot 1.0.0:
 ======================================================================
 
+* Suppress all output with splashscreen configured only if "splashimage"
+  is set
+
 * Fix problems with I2C support for mpc5200
 
 * Adapt TRAB configuration and auto_update to new memory layout