crypto: marvell/octeontx - fix repeated words in comments

Delete the redundant word 'is'.
Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/marvell/octeontx/otx_cpt_hw_types.h

@@ -403,7 +403,7 @@ union otx_cptx_pf_exe_bist_status {
  *	big-endian format in memory.
  *  iqb_ldwb:1 [7:7](R/W) Instruction load don't write back.
  *	0 = The hardware issues NCB transient load (LDT) towards the cache,
- *	which if the line hits and is is dirty will cause the line to be
+ *	which if the line hits and is dirty will cause the line to be
  *	written back before being replaced.
  *	1 = The hardware issues NCB LDWB read-and-invalidate command towards
  *	the cache when fetching the last word of instructions; as a result the