net: ena: Fix Kconfig dependency on X86

The Kconfig limitation of X86 is to too wide.
The ENA driver only requires a little endian dependency.

Change the dependency to be on little endian CPU.

Signed-off-by: Netanel Belgazal <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

(cherry picked from commit 8c590f9)
Orabug: 29162519
Signed-off-by: Somasundaram Krishnasamy <[email protected]>
Reviewed-by: Allen Pais <[email protected]>

Author: NetanelBelgazal

drivers/net/ethernet/amazon/Kconfig

@@ -17,7 +17,7 @@ if NET_VENDOR_AMAZON
 
 config ENA_ETHERNET
 	tristate "Elastic Network Adapter (ENA) support"
-	depends on (PCI_MSI && X86)
+	depends on PCI_MSI && !CPU_BIG_ENDIAN
 	---help---
 	  This driver supports Elastic Network Adapter (ENA)"