fw16 - round up chunk calculation

found that when writing the GPU EEPROM descriptor
depending on the length of the descriptor, the end would be missing

Signed-off-by: Kieran Levin <ktl@frame.work>

Author: kiram9

framework_lib/src/chromium_ec/mod.rs

@@ -1451,7 +1451,7 @@ impl CrosEc {
         // Need to program the EEPROM 32 bytes at a time.
         let chunk_size = 32;
 
-        let chunks = data.len() / chunk_size;
+        let chunks = data.len().div_ceil(chunk_size);
         let mut return_val: EcResult<()> = Ok(());
         for chunk_no in 0..chunks {
             let offset = chunk_no * chunk_size;