[PATCH v2] docs: powerpc: vas-api: Fix the structure name and the ioctl number in the example

struct vas_setup_attr does not exist; the name is struct
vas_tx_win_open_attr. The example also defines VAS_TX_WIN_OPEN with the
request number 1, while arch/powerpc/include/uapi/asm/vas-api.h has used
0x20 since the ioctl was added.

Use struct vas_tx_win_open_attr and 0x20.

Fixes: c12e38b1d52e ("Documentation/powerpc: VAS API")
Suggested-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Assisted-by: LLM
Signed-off-by: Karl Mehltretter <redacted>
---
v2: also fix the ioctl request number in the example (Ritesh)
v1: https://lore.kernel.org/r/20260905104313.43620-1-kmehltretter@gmail.com/ (local)

 Documentation/arch/powerpc/vas-api.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/arch/powerpc/vas-api.rst b/Documentation/arch/powerpc/vas-api.rst
index 1d0d055356e3..f74ea9fbc8a0 100644
--- a/Documentation/arch/powerpc/vas-api.rst
+++ b/Documentation/arch/powerpc/vas-api.rst

@@ -136,7 +136,7 @@ a connection with NX co-processor engine:
 	follows::
 
 		#define VAS_MAGIC 'v'
-		#define VAS_TX_WIN_OPEN _IOW(VAS_MAGIC, 1,
+		#define VAS_TX_WIN_OPEN _IOW(VAS_MAGIC, 0x20,
 						struct vas_tx_win_open_attr)
 
 		struct vas_tx_win_open_attr attr;

@@ -265,7 +265,7 @@ Simple example
 		{
 			int rc, fd;
 			void *addr;
-			struct vas_setup_attr txattr;
+			struct vas_tx_win_open_attr txattr;
 
 			fd = open("/dev/crypto/nx-gzip", O_RDWR);
 			if (fd < 0) {

base-commit: 986c24e0fe44f844b44d365b71ce831947f50298
-- 
2.53.0