scsi: lpfc: Ensure variable has the same stipulations as code using it

'pg_addr' is only used when CONFIG_X86 is defined.  So only declare it if
CONFIG_X86 is defined.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_sli.c: In function ‘lpfc_wq_create’:
 drivers/scsi/lpfc/lpfc_sli.c:15813:16: warning: unused variable ‘pg_addr’ [-Wunused-variable]
 15813 | unsigned long pg_addr;
 | ^~~~~~~

Link: https://lore.kernel.org/r/[email protected]
Cc: James Smart <[email protected]>
Cc: Dick Kennedy <[email protected]>
Cc: Sumit Semwal <[email protected]>
Cc: "Christian König" <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Lee Jones <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

0 files changed, 0 insertions, 0 deletions