powerpc doesn't have sbrk yet, so use "malloc", not "malloc-930716"

extra/Configs/Config.powerpc

@@ -109,8 +109,8 @@ LOCALE_DIR = "/usr/share/uClibc-locale/"
 # It is actually smaller than "malloc", at least on i386.  Right now, it
 # only works on i386 (and maybe m68k) because it needs sbrk.
 #MALLOC = malloc-simple
-#MALLOC = malloc 
-MALLOC = malloc-930716
+MALLOC = malloc 
+#MALLOC = malloc-930716
 
 # If you want to collect common syscall code into one function, set to this to
 # `true'.  Set it to false otherwise.