docs: release: 3.4: List removed absolute symbols

Updates the release notes to document which absolute symbols
(generated via GEN_ABSOLUTE_SYM) have been removed.

Signed-off-by: Peter Mitsis <[email protected]>

Author: peter-mitsis

doc/releases/release-notes-3.4.rst

@@ -175,17 +175,35 @@ New APIs in this release
 Kernel
 ******
 
+* Removed absolute symbols :c:macro:`___cpu_t_SIZEOF`,
+  :c:macro:`_STRUCT_KERNEL_SIZE`, :c:macro:`K_THREAD_SIZEOF` and
+  :c:macro:`_DEVICE_STRUCT_SIZEOF`
+
 Architectures
 *************
 
-* ARM
+* ARC
+  * Removed absolute symbols :c:macro:`___callee_saved_t_SIZEOF` and
+  :c:macro:`_K_THREAD_NO_FLOAT_SIZEOF`
 
 * ARM
+  * Removed absolute symbols :c:macro:`___basic_sf_t_SIZEOF`,
+  :c:macro:`_K_THREAD_NO_FLOAT_SIZEOF`, :c:macro:`___cpu_context_t_SIZEOF`
+  and :c:macro:`___thread_stack_info_t_SIZEOF`
 
 * ARM64
+  * Removed absolute symbol :c:macro:`___callee_saved_t_SIZEOF`
+
+* NIOS2
+  * Removed absolute symbol :c:macro:`_K_THREAD_NO_FLOAT_SIZEOF`
 
 * RISC-V
 
+* SPARC
+  * Removed absolute symbol :c:macro:`_K_THREAD_NO_FLOAT_SIZEOF`
+
+* X86
+
 * Xtensa
 
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