net: mana: Fix build errors when CONFIG_NET_SHAPER is disabled

jira LE-4472
commit-author Erni Sri Satya Vennela <ernis@linux.microsoft.com>
commit 11cd020

Fix build errors when CONFIG_NET_SHAPER is disabled, including:

drivers/net/ethernet/microsoft/mana/mana_en.c:804:10: error:
'const struct net_device_ops' has no member named 'net_shaper_ops'

     804 |         .net_shaper_ops         = &mana_shaper_ops,

drivers/net/ethernet/microsoft/mana/mana_en.c:804:35: error:
initialization of 'int (*)(struct net_device *, struct neigh_parms *)'
from incompatible pointer type 'const struct net_shaper_ops *'
[-Werror=incompatible-pointer-types]

     804 |         .net_shaper_ops         = &mana_shaper_ops,

	Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com>
Fixes: 75cabb4 ("net: mana: Add support for net_shaper_ops")
	Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202506230625.bfUlqb8o-lkp@intel.com/
	Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1750851355-8067-1-git-send-email-ernis@linux.microsoft.com
	Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 11cd020)
	Signed-off-by: Shreeya Patel <spatel@ciq.com>

Author: shreeya-patel98

drivers/net/ethernet/microsoft/Kconfig

@@ -22,6 +22,7 @@ config MICROSOFT_MANA
 	depends on PCI_HYPERV
 	select AUXILIARY_BUS
 	select PAGE_POOL
+	select NET_SHAPER
 	help
 	  This driver supports Microsoft Azure Network Adapter (MANA).
 	  So far, the driver is only supported on X86_64.