arm: aarch32: sort the source files lists alphabetically

Re-organize the library sources list so the files
are sorted alphabetically.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>

arch/arm/core/aarch32/CMakeLists.txt

@@ -3,15 +3,15 @@
 zephyr_library()
 
 zephyr_library_sources(
-  swap.c
-  swap_helper.S
-  irq_manage.c
-  thread.c
   cpu_idle.S
   fatal.c
+  irq_manage.c
   nmi.c
   nmi_on_reset.S
   prep_c.c
+  swap.c
+  swap_helper.S
+  thread.c
 )
 
 zephyr_library_sources_ifdef(CONFIG_GEN_SW_ISR_TABLE isr_wrapper.S)

arch/arm/core/aarch32/cortex_a_r/CMakeLists.txt

@@ -3,15 +3,15 @@
 zephyr_library()
 
 zephyr_library_sources(
-  vector_table.S
-  reset.S
   exc.S
   exc_exit.S
   fault.c
   irq_init.c
   reboot.c
+  reset.S
   stacks.c
   tcm.c
+  vector_table.S
   )
 
 zephyr_library_sources_ifdef(CONFIG_USERSPACE thread.c)

arch/arm/core/aarch32/cortex_m/CMakeLists.txt

@@ -3,15 +3,15 @@
 zephyr_library()
 
 zephyr_library_sources(
-  vector_table.S
-  reset.S
-  fault_s.S
-  fault.c
   exc_exit.S
+  fault.c
+  fault_s.S
   fpu.c
-  scb.c
   irq_init.c
+  reset.S
+  scb.c
   thread_abort.c
+  vector_table.S
   )
 
 zephyr_library_sources_ifdef(CONFIG_USERSPACE thread.c)