Fix cluster info size calculation.

[wt]

This fixes generation of a pac for the LPC55S16 chip. Before, trying to generate this board's pac would result in the following error:

ERROR svd2rust] Error rendering device
    
    Caused by:
        0: can't render peripheral 'I2S0', group 'I2S'
        1: Could not expand register or cluster block
        2: can't expand cluster 'SECCHANNEL[%s]'
        3: Cluster SECCHANNEL[%s] has size 24928 bits that is more then array increment 256 bits

[Emilgardis]

/ci diff pr

[github-actions]

Diff for comment

• pr

[Emilgardis]

this definitely results in wrong output. Can you share the SVD file?

[wt]

Here's the SVD xml file:
LPC55S16.xml

[Emilgardis]

The addressOffsets are wrong, seems to be 0xC0 too large

[Emilgardis]

going to close this PR as it's not correct and seems like the input is the source of the problem experienced.

[wt]

Oh, I think I see what you are saying. Thanks for the help.

[Emilgardis]

to clarify :) this seems to work, not sure it's correct though as I was unable to find register descriptions

diff --git "a" "b"
index 698e1ca..dd099bd 100644
--- "a"
+++ "b"
@@ -54251,7 +54251,7 @@ SPDX-License-Identifier: BSD-3-Clause
           <register>
             <name>PCFG1</name>
             <description>Configuration register 1 for channel pair</description>
-            <addressOffset>0xC20</addressOffset>
+            <addressOffset>0x0</addressOffset>
             <size>32</size>
             <access>read-write</access>
             <resetValue>0</resetValue>
@@ -54300,7 +54300,7 @@ SPDX-License-Identifier: BSD-3-Clause
           <register>
             <name>PCFG2</name>
             <description>Configuration register 2 for channel pair</description>
-            <addressOffset>0xC24</addressOffset>
+            <addressOffset>0x4</addressOffset>
             <size>32</size>
             <access>read-write</access>
             <resetValue>0</resetValue>
@@ -54318,7 +54318,7 @@ SPDX-License-Identifier: BSD-3-Clause
           <register>
             <name>PSTAT</name>
             <description>Status register for channel pair</description>
-            <addressOffset>0xC28</addressOffset>
+            <addressOffset>0x8</addressOffset>
             <size>32</size>
             <access>read-write</access>
             <resetValue>0</resetValue>