Manual: Update Metadata limitations

Limit for devices with more than 8MB of memory had
previously been increased from 300 to 500 bytes
for individual fields, and to 1800 from 900 bytes for
buffer containing all fields.

See a8846e3

Change-Id: I63305c50f6f486ad321664babdb94052ea9209a9

apps/features.txt

@@ -262,6 +262,8 @@ recording_digital
 
 #if MEMORYSIZE <= 2
 lowmem
+#elif MEMORYSIZE > 8
+himem
 #endif
 
 #if defined(HAVE_HARDWARE_CLICK)

manual/appendix/file_formats.tex

@@ -357,12 +357,17 @@
         \item Multiple tags (e.g. for Genre) are not supported. The first tag 
               item of a set of multiple tags is used.
         \item Only one tag type is supported for each audio format.
-    \nopt{clipv1,c200v2}{
+    \nopt{lowmem,himem}{
         \item Overall there are 900 bytes available to load metadata strings.
         \item The maximum size of each metadata item (e.g. Artists) is limited 
               to 240 bytes.
     }
-    \opt{clipv1,c200v2}{
+    \opt{himem}{
+        \item Overall there are 1800 bytes available to load metadata strings.
+        \item The maximum size of each metadata item (e.g. Artists) is limited
+              to 500 bytes.
+    }
+    \opt{lowmem}{
         \item Overall there are 300 bytes available to load metadata strings.
         \item The maximum size of each metadata item (e.g. Artists) is limited 
               to 90 bytes.