DoxyGen: Fixed version and history of CMSIS 5.5.1 in documentation ov…

…erview.

Change-Id: I2eae8b40bb71b0475c945a0e2c5c3d5c242bf282

CMSIS/DoxyGen/General/general.dxy

@@ -38,7 +38,7 @@ PROJECT_NAME           = CMSIS
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = "Version 5.5.0"
+PROJECT_NUMBER         = "Version 5.5.1"
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

CMSIS/DoxyGen/General/src/introduction.txt

@@ -193,6 +193,23 @@ In addition, each CMSIS component has its own release history:
       <th>Version</th>
       <th>Description</th>
     </tr>
+    <tr>
+      <td>5.5.1</td>
+      <td>
+        - CMSIS-Core (Cortex-M) 5.2.1
+          - Fixed compilation issue in cmsis_armclang_ltm.h
+        - CMSIS-Core (Cortex-A) 1.1.3 (unchanged)
+        - CMSIS-Driver 2.7.0 (unchanged)
+        - CMSIS-DSP 1.6.0 (unchanged)
+        - CMSIS-NN 1.1.0 (unchanged)
+        - CMSIS-RTOS 2.1.3 (unchanged)
+          - RTX 5.5.0 (unchanged)
+        - CMSIS-Pack 1.6.0 (unchanged)
+        - CMSIS-SVD 1.3.3 (unchanged)
+        - CMSIS-DAP 2.0.0 (unchanged)
+        - CMSIS-Zone 0.9.0 (unchanged)
+      </td>
+    </tr>
     <tr>
       <td>5.5.0</td>
       <td>