boards: nxp: Update the boards using NXP LPC DMA

Switched dma_mcux_lpc DMA driver to use K_HEAP_DEFINE

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
diff --git a/boards/arm/lpcxpresso55s28/Kconfig.defconfig b/boards/arm/lpcxpresso55s28/Kconfig.defconfig
index 62b78f4..40e95c1 100644
--- a/boards/arm/lpcxpresso55s28/Kconfig.defconfig
+++ b/boards/arm/lpcxpresso55s28/Kconfig.defconfig
@@ -38,13 +38,3 @@
 	depends on BOARD_LPCXPRESSO55S28 && TRUSTED_EXECUTION_SECURE
 
 endif # BOARD_LPCXPRESSO55S28
-
-if DMA_MCUX_LPC
-
-# Memory from the heap pool is used to allocate DMA descriptors for
-# channels that use multiple blocks for a DMA transfer.
-# Adjust HEAP_MEM_POOL_SIZE in case you need more memory.
-config HEAP_MEM_POOL_SIZE
-	default 4096
-
-endif # DMA_MCUX_LPC
diff --git a/boards/arm/lpcxpresso55s69/Kconfig.defconfig b/boards/arm/lpcxpresso55s69/Kconfig.defconfig
index c3378cf..7c98507 100644
--- a/boards/arm/lpcxpresso55s69/Kconfig.defconfig
+++ b/boards/arm/lpcxpresso55s69/Kconfig.defconfig
@@ -56,13 +56,3 @@
 endchoice
 
 endif # BOARD_LPCXPRESSO55S69_CPU0 || BOARD_LPCXPRESSO55S69_CPU1
-
-if DMA_MCUX_LPC
-
-# Memory from the heap pool is used to allocate DMA descriptors for
-# channels that use multiple blocks for a DMA transfer.
-# Adjust HEAP_MEM_POOL_SIZE in case you need more memory.
-config HEAP_MEM_POOL_SIZE
-	default 4096
-
-endif # DMA_MCUX_LPC
diff --git a/boards/arm/mimxrt595_evk/Kconfig.defconfig b/boards/arm/mimxrt595_evk/Kconfig.defconfig
index 6e5a51c..f9b0b56 100644
--- a/boards/arm/mimxrt595_evk/Kconfig.defconfig
+++ b/boards/arm/mimxrt595_evk/Kconfig.defconfig
@@ -19,16 +19,6 @@
 	default y
 	depends on FXOS8700_TRIGGER
 
-if DMA_MCUX_LPC
-
-# Memory from the heap pool is used to allocate DMA descriptors for
-# channels that use multiple blocks for a DMA transfer.
-# Adjust HEAP_MEM_POOL_SIZE in case you need more memory.
-config HEAP_MEM_POOL_SIZE
-	default 4096
-
-endif # DMA_MCUX_LPC
-
 if DISPLAY
 
 # Enable MIPI display driver
diff --git a/boards/arm/mimxrt685_evk/Kconfig.defconfig b/boards/arm/mimxrt685_evk/Kconfig.defconfig
index 8b0f08c..db2679a 100644
--- a/boards/arm/mimxrt685_evk/Kconfig.defconfig
+++ b/boards/arm/mimxrt685_evk/Kconfig.defconfig
@@ -26,14 +26,4 @@
 	default y
 	depends on FXOS8700_TRIGGER
 
-if DMA_MCUX_LPC
-
-# Memory from the heap pool is used to allocate DMA descriptors for
-# channels that use multiple blocks for a DMA transfer.
-# Adjust HEAP_MEM_POOL_SIZE in case you need more memory.
-config HEAP_MEM_POOL_SIZE
-	default 4096
-
-endif # DMA_MCUX_LPC
-
 endif # BOARD_MIMXRT685_EVK