kconfig: use bool instead of boolean for type definition attributes

Support for keyword 'boolean' will be dropped later on.

No functional change.

Reference: http://lkml.kernel.org/r/cover.1418003065.git.cj@linux.com
Signed-off-by: Christoph Jaeger <cj@linux.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

net/Kconfig

@@ -231,18 +231,18 @@ source "net/hsr/Kconfig"
 source "net/switchdev/Kconfig"
 
 config RPS
-	boolean
+	bool
 	depends on SMP && SYSFS
 	default y
 
 config RFS_ACCEL
-	boolean
+	bool
 	depends on RPS
 	select CPU_RMAP
 	default y
 
 config XPS
-	boolean
+	bool
 	depends on SMP
 	default y
 
@@ -254,18 +254,18 @@ config CGROUP_NET_PRIO
 	  a per-interface basis.
 
 config CGROUP_NET_CLASSID
-	boolean "Network classid cgroup"
+	bool "Network classid cgroup"
 	depends on CGROUPS
 	---help---
 	  Cgroup subsystem for use as general purpose socket classid marker that is
 	  being used in cls_cgroup and for netfilter matching.
 
 config NET_RX_BUSY_POLL
-	boolean
+	bool
 	default y
 
 config BQL
-	boolean
+	bool
 	depends on SYSFS
 	select DQL
 	default y
@@ -282,7 +282,7 @@ config BPF_JIT
 	  this feature changing /proc/sys/net/core/bpf_jit_enable
 
 config NET_FLOW_LIMIT
-	boolean
+	bool
 	depends on RPS
 	default y
 	---help---