msm7627a: Increase cache partition size to 40MB for FOTA

Delta update package for FOTA require an increased cache partition
to store and extract the package.

Change-Id: I31602706fb7082b5690e84e69c14cbdd30144087
diff --git a/target/msm7627a/init.c b/target/msm7627a/init.c
index e704bca..facf181 100644
--- a/target/msm7627a/init.c
+++ b/target/msm7627a/init.c
@@ -83,7 +83,7 @@
 	},
 	{
 		.start = DIFF_START_ADDR,
-		.length = 4 /* In MB */,
+		.length = 40 /* In MB */,
 		.name = "cache",
 	},
 	{
@@ -126,7 +126,7 @@
 	},
 	{
 		.start = DIFF_START_ADDR,
-		.length = 8 /* In MB */,
+		.length = 40 /* In MB */,
 		.name = "cache",
 	},
 	{