microblaze: fix typos in comments

Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20220430191122.8667-1-Julia.Lawall@inria.fr
Signed-off-by: Michal Simek <michal.simek@amd.com>

Author: JuliaLawall

arch/microblaze/kernel/kgdb.c

@@ -31,7 +31,7 @@
 #define GDB_RTLBLO	55
 #define GDB_RTLBHI	56
 
-/* keep pvr separately because it is unchangeble */
+/* keep pvr separately because it is unchangeable */
 static struct pvr_s pvr;
 
 void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)

arch/microblaze/lib/memmove.c

@@ -78,7 +78,7 @@ void *memmove(void *v_dst, const void *v_src, __kernel_size_t c)
 
 		i_dst = (void *)dst;
 		/* Choose a copy scheme based on the source */
-		/* alignment relative to dstination. */
+		/* alignment relative to destination. */
 		switch ((unsigned long)src & 3) {
 		case 0x0:	/* Both byte offsets are aligned */