davinci: display correct clock info

Move the clock-rate dumping code into the cpu/.../davinci area
where it should have been, enabled by CONFIG_DISPLAY_CPUINFO,
updating the format and showing the DSP clock (where relevant).

Switch boards to use the cpuinfo() hook for this stuff.

Remove a few now-obsolete PLL #defines.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
diff --git a/include/configs/davinci_schmoogie.h b/include/configs/davinci_schmoogie.h
index d5e77f8..6612cb3 100644
--- a/include/configs/davinci_schmoogie.h
+++ b/include/configs/davinci_schmoogie.h
@@ -27,6 +27,7 @@
 #define SCHMOOGIE
 #define CONFIG_SYS_NAND_LARGEPAGE
 #define CONFIG_SYS_USE_NAND
+#define CONFIG_DISPLAY_CPUINFO
 /*===================*/
 /* SoC Configuration */
 /*===================*/