gdb/arm: Fix obvious typo in b0b23e06c3a

As part of the rebase of the patch, I managed to loose the local
changes I had for the comments from Tomas in
https://sourceware.org/pipermail/gdb-patches/2022-November/193413.html
This patch corrects the obvious two typos.

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index f748df8..a839f95 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -401,9 +401,9 @@ arm_cache_init (struct arm_prologue_cache *cache, frame_info_ptr frame)
   else if (tdep->is_m)
     {
       cache->msp_s
-	= get_frame_register_unsigned (frame, tdep->m_profile_msp_s_regnum);
+	= get_frame_register_unsigned (frame, tdep->m_profile_msp_regnum);
       cache->psp_s
-	= get_frame_register_unsigned (frame, tdep->m_profile_psp_s_regnum);
+	= get_frame_register_unsigned (frame, tdep->m_profile_psp_regnum);
 
       /* Identify what sp is alias for (msp or psp).  */
       if (cache->msp_s == cache->sp)