include: psp-sev: Capitalize invalid length enum

Commit 1d57b17c ("crypto: ccp: Define SEV userspace ioctl and command
id") added the invalid length enum but we missed capitalizing it.

Fixes: 1d57b17c (crypto: ccp: Define SEV userspace ioctl ...)
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
CC: Gary R Hook <gary.hook@amd.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/uapi/linux/psp-sev.h

@@ -42,7 +42,7 @@ typedef enum {
 	SEV_RET_INVALID_PLATFORM_STATE,
 	SEV_RET_INVALID_GUEST_STATE,
 	SEV_RET_INAVLID_CONFIG,
-	SEV_RET_INVALID_len,
+	SEV_RET_INVALID_LEN,
 	SEV_RET_ALREADY_OWNED,
 	SEV_RET_INVALID_CERTIFICATE,
 	SEV_RET_POLICY_FAILURE,