fixup: DMA docs sync

Author: rleh

README.md

@@ -206,13 +206,13 @@ Please [discover modm's peripheral drivers for your specific device][discover].
 <td align="left">DMA</td>
 <td align="center">✅</td>
 <td align="center">✅</td>
-<td align="center">○</td>
 <td align="center">✅</td>
 <td align="center">✅</td>
 <td align="center">✅</td>
 <td align="center">✅</td>
 <td align="center">✅</td>
-<td align="center">○</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
 <td align="center">✅</td>
 <td align="center">✅</td>
 <td align="center">✅</td>
@@ -303,6 +303,26 @@ Please [discover modm's peripheral drivers for your specific device][discover].
 <td align="center">✅</td>
 <td align="center">✅</td>
 </tr><tr>
+<td align="left">I2S</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✅</td>
+<td align="center">✕</td>
+<td align="center">○</td>
+<td align="center">✕</td>
+<td align="center">✕</td>
+<td align="center">✕</td>
+<td align="center">✕</td>
+<td align="center">✕</td>
+</tr><tr>
 <td align="left">I<sup>2</sup>C</td>
 <td align="center">✅</td>
 <td align="center">✅</td>