[IA64] Fix build failure in fs/quota.c

b716395e2b8e450e294537de0c91476ded2f0395 added code to handle
a compatability issue with 32bit quota tools, but the new compat
routines are only needed when CONFIG_COMPAT=y (and with this set
to 'n' there are compilation problems since some new typedefs are
not visible).

Reported by Doug Chapman.  Fix tuned by a cast of thousands (Andi,
Andreas, Arthur, HPA, Willy)

Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 36c7b96..21aa4fc 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -425,6 +425,9 @@
 	depends on IA32_SUPPORT
 	default y
 
+config COMPAT_FOR_U64_ALIGNMENT
+	def_bool COMPAT
+
 config IA64_MCA_RECOVERY
 	tristate "MCA recovery from errors other than TLB."