drivers: interrupt_controller: Remove redundant 'default n' properties

Bool symbols implicitly default to 'n'.

A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though, and is
inconsistent.

This will make the auto-generated Kconfig documentation have "No
defaults. Implicitly defaults to n." as well, which is clearer than
'default n if ...'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>

drivers/interrupt_controller/Kconfig

@@ -10,7 +10,6 @@ menu "Interrupt Controllers"
 
 config LOAPIC
 	bool "LOAPIC"
-	default n
 	select IOAPIC
 	depends on X86
 	help
@@ -25,7 +24,6 @@ config LOAPIC_BASE_ADDRESS
 
 config LOAPIC_SPURIOUS_VECTOR
 	bool "Handle LOAPIC spurious interrupts"
-	default n
 	depends on LOAPIC
 	help
 	  A special situation may occur when a processor raises its task
@@ -57,7 +55,6 @@ config IOAPIC
 
 config IOAPIC_DEBUG
 	bool "IO-APIC Debugging"
-	default n
 	depends on IOAPIC
 	help
 	  Enable debugging for IO-APIC driver.
@@ -85,7 +82,6 @@ config IOAPIC_MASK_RTE
 
 config MVIC
 	bool "Intel Quark D2000 Interrupt Controller (MVIC)"
-	default n
 	depends on X86
 	select X86_FIXED_IRQ_MAPPING
 	help
@@ -127,7 +123,6 @@ config PLIC
 
 config DW_ICTL
 	bool "Designware Interrupt Controller"
-	default n
 	depends on MULTI_LEVEL_INTERRUPTS
 	help
 	  Designware Interrupt Controller can be used as a 2nd level interrupt

drivers/interrupt_controller/Kconfig.multilevel

@@ -7,7 +7,6 @@
 
 config MULTI_LEVEL_INTERRUPTS
 	bool "Multi-level Interrupts"
-	default n
 	depends on GEN_SW_ISR_TABLE
 	help
 	  Multiple levels of interrupts are normally used to increase the
@@ -26,7 +25,6 @@ config MAX_IRQ_PER_AGGREGATOR
 
 config 2ND_LEVEL_INTERRUPTS
 	bool "Second-level Interrupts"
-	default n
 	depends on MULTI_LEVEL_INTERRUPTS
 	help
 	  Second level interrupts are used to increase the number of
@@ -85,7 +83,6 @@ config 2ND_LVL_INTR_03_OFFSET
 
 config 3RD_LEVEL_INTERRUPTS
 	bool "Third-level Interrupts"
-	default n
 	depends on 2ND_LEVEL_INTERRUPTS
 	help
 	  Third level interrupts are used to increase the number of

drivers/interrupt_controller/Kconfig.s1000

@@ -7,7 +7,6 @@
 
 config CAVS_ICTL
 	bool "CAVS Interrupt Logic"
-	default n
 	depends on MULTI_LEVEL_INTERRUPTS
 	help
 	  These are 4 in number supporting a max of 32 interrupts each.

drivers/interrupt_controller/Kconfig.shared_irq

@@ -9,7 +9,6 @@
 menuconfig SHARED_IRQ
 	bool
 	prompt "Shared interrupt driver"
-	default n
 	help
 	 Include shared interrupt support in system. Shared interrupt
 	 support is NOT required in most systems. If in doubt answer no.