Rename CONFIG_SYS_INIT_RAM_END into CONFIG_SYS_INIT_RAM_SIZE

CONFIG_SYS_INIT_RAM_END was a misnomer as it suggests this might be
some end address; to make the meaning more clear we rename it into
CONFIG_SYS_INIT_RAM_SIZE

No other code changes are performed in this patch, only minor editing
of white space (due to the changed length) and the comments was done,
where noticed.

Note that the code for the PATI and cmi_mpc5xx board configurations
looks seriously broken.  Last known maintainers on Cc:

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Denis Peter <d.peter@mpl.ch>
Cc: Martin Winistoerfer <martinwinistoerfer@gmx.ch>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/configs/yucca.h b/include/configs/yucca.h
index 8d5d45f..55a364c 100644
--- a/include/configs/yucca.h
+++ b/include/configs/yucca.h
@@ -97,10 +97,10 @@
 #define CONFIG_SYS_TEMP_STACK_OCM	1
 #define CONFIG_SYS_OCM_DATA_ADDR	CONFIG_SYS_ISRAM_BASE
 #define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_ISRAM_BASE	/* Initial RAM address	*/
-#define CONFIG_SYS_INIT_RAM_END	0x2000		/* End of used area in RAM */
+#define CONFIG_SYS_INIT_RAM_SIZE	0x2000		/* Size of used area in RAM */
 #define CONFIG_SYS_GBL_DATA_SIZE	128		/* num bytes initial data */
 
-#define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
+#define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_SIZE - CONFIG_SYS_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	(CONFIG_SYS_GBL_DATA_OFFSET - 0x4)
 
 /*-----------------------------------------------------------------------