IB/core: Extend rate limit support for RC QPs

Broadcom devices supports setting the rate limit while changing
RC QP state from INIT to RTR, RTR to RTS and RTS to RTS.

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20260202133413.3182578-6-kalesh-anakkur.purayil@broadcom.com
Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: kaleshap86

drivers/infiniband/core/verbs.c

@@ -1537,7 +1537,8 @@ static const struct {
 						 IB_QP_PKEY_INDEX),
 				 [IB_QPT_RC]  = (IB_QP_ALT_PATH			|
 						 IB_QP_ACCESS_FLAGS		|
-						 IB_QP_PKEY_INDEX),
+						 IB_QP_PKEY_INDEX		|
+						 IB_QP_RATE_LIMIT),
 				 [IB_QPT_XRC_INI] = (IB_QP_ALT_PATH		|
 						 IB_QP_ACCESS_FLAGS		|
 						 IB_QP_PKEY_INDEX),
@@ -1585,7 +1586,8 @@ static const struct {
 						 IB_QP_ALT_PATH			|
 						 IB_QP_ACCESS_FLAGS		|
 						 IB_QP_MIN_RNR_TIMER		|
-						 IB_QP_PATH_MIG_STATE),
+						 IB_QP_PATH_MIG_STATE		|
+						 IB_QP_RATE_LIMIT),
 				 [IB_QPT_XRC_INI] = (IB_QP_CUR_STATE		|
 						 IB_QP_ALT_PATH			|
 						 IB_QP_ACCESS_FLAGS		|
@@ -1619,7 +1621,8 @@ static const struct {
 						IB_QP_ACCESS_FLAGS		|
 						IB_QP_ALT_PATH			|
 						IB_QP_PATH_MIG_STATE		|
-						IB_QP_MIN_RNR_TIMER),
+						IB_QP_MIN_RNR_TIMER		|
+						IB_QP_RATE_LIMIT),
 				[IB_QPT_XRC_INI] = (IB_QP_CUR_STATE		|
 						IB_QP_ACCESS_FLAGS		|
 						IB_QP_ALT_PATH			|