PM: hibernate: swap: don't use /** for non-kernel-doc comments

kernel-doc complains about multiple occurrences of "/**" being used
for something that is not a kernel-doc comment, so change all of these
to just use "/*" comment style.

The warning message for all of these is:

FILE:LINE: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

kernel/power/swap.c:585: warning: ...
Structure used for CRC32.
kernel/power/swap.c:600: warning: ...
 * CRC32 update function that runs in its own thread.
kernel/power/swap.c:627: warning: ...
 * Structure used for LZO data compression.
kernel/power/swap.c:644: warning: ...
 * Compression function that runs in its own thread.
kernel/power/swap.c:952: warning: ...
 *      The following functions allow us to read data using a swap map
kernel/power/swap.c:1111: warning: ...
 * Structure used for LZO data decompression.
kernel/power/swap.c:1127: warning: ...
 * Decompression function that runs in its own thread.

Also correct one spello/typo.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

kernel/power/swap.c

@@ -581,7 +581,7 @@ static int save_image(struct swap_map_handle *handle,
 	return ret;
 }
 
-/**
+/*
  * Structure used for CRC32.
  */
 struct crc_data {
@@ -596,7 +596,7 @@ struct crc_data {
 	unsigned char *unc[LZO_THREADS];          /* uncompressed data */
 };
 
-/**
+/*
  * CRC32 update function that runs in its own thread.
  */
 static int crc32_threadfn(void *data)
@@ -623,7 +623,7 @@ static int crc32_threadfn(void *data)
 	}
 	return 0;
 }
-/**
+/*
  * Structure used for LZO data compression.
  */
 struct cmp_data {
@@ -640,7 +640,7 @@ struct cmp_data {
 	unsigned char wrk[LZO1X_1_MEM_COMPRESS];  /* compression workspace */
 };
 
-/**
+/*
  * Compression function that runs in its own thread.
  */
 static int lzo_compress_threadfn(void *data)
@@ -948,9 +948,9 @@ int swsusp_write(unsigned int flags)
 	return error;
 }
 
-/**
+/*
  *	The following functions allow us to read data using a swap map
- *	in a file-alike way
+ *	in a file-like way.
  */
 
 static void release_swap_reader(struct swap_map_handle *handle)
@@ -1107,7 +1107,7 @@ static int load_image(struct swap_map_handle *handle,
 	return ret;
 }
 
-/**
+/*
  * Structure used for LZO data decompression.
  */
 struct dec_data {
@@ -1123,7 +1123,7 @@ struct dec_data {
 	unsigned char cmp[LZO_CMP_SIZE];          /* compressed buffer */
 };
 
-/**
+/*
  * Decompression function that runs in its own thread.
  */
 static int lzo_decompress_threadfn(void *data)