mdm9615: Correcting the scratch address and size

Using the 23 MB block for scratch.

Change-Id: I6da2e18a34cb1cfb770c19e67d889e2326e9b3b2
diff --git a/target/mdm9615/atags.c b/target/mdm9615/atags.c
index 18e75cf..f9b636f 100644
--- a/target/mdm9615/atags.c
+++ b/target/mdm9615/atags.c
@@ -36,7 +36,6 @@
 #define SIZE_15M    (15 * SIZE_1M)
 #define SIZE_23M    (23 * SIZE_1M)
 #define SIZE_88M    (11 * SIZE_8M)
-#define SIZE_128M   (128 * SIZE_1M)
 
 unsigned* target_atag_mem(unsigned* ptr)
 {
@@ -74,7 +73,12 @@
 	return ptr;
 }
 
+void *target_get_scratch_address(void)
+{
+	return((void *)SCRATCH_ADDR);
+}
+
 unsigned target_get_max_flash_size(void)
 {
-	return (SIZE_128M);
+	return (SIZE_23M);
 }