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/PATI.h b/include/configs/PATI.h
index b07cac1..8887f97 100644
--- a/include/configs/PATI.h
+++ b/include/configs/PATI.h
@@ -132,9 +132,9 @@
  * Definitions for initial stack pointer and data area
  */
 #define CONFIG_SYS_INIT_RAM_ADDR	(CONFIG_SYS_IMMR + 0x003f9800)	/* Physical start adress of internal MPC555 writable RAM */
-#define	CONFIG_SYS_INIT_RAM_END	(CONFIG_SYS_IMMR + 0x003fffff)	/* Physical end adress of internal MPC555 used RAM area	*/
+#define	CONFIG_SYS_INIT_RAM_SIZE	(CONFIG_SYS_IMMR + 0x003fffff)	/* Physical end adress of internal MPC555 used RAM area	*/
 #define	CONFIG_SYS_GBL_DATA_SIZE	128			/* Size in bytes reserved for initial global data */
-#define CONFIG_SYS_GBL_DATA_OFFSET	((CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_INIT_RAM_ADDR) - CONFIG_SYS_GBL_DATA_SIZE) /* Offset from the beginning of ram */
+#define CONFIG_SYS_GBL_DATA_OFFSET	((CONFIG_SYS_INIT_RAM_SIZE - CONFIG_SYS_INIT_RAM_ADDR) - CONFIG_SYS_GBL_DATA_SIZE) /* Offset from the beginning of ram */
 #define	CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_IMMR + 0x03fa000)	/* Physical start adress of inital stack */
 /*
  * Start addresses for the final memory configuration