Add kinetis LMS small config

Author: mattia-moffa

config/examples/kinetis-kl26-lms-small.config

@@ -0,0 +1,49 @@
+ARCH?=ARM
+TARGET?=kinetis_kl26
+SIGN?=LMS
+HASH?=SHA256
+
+LMS_LEVELS=1
+LMS_HEIGHT=10
+LMS_WINTERNITZ=8
+IMAGE_SIGNATURE_SIZE=1456
+# Keytools (sign.c) forces header_sz >= 2 * sig_sz for LMS, so the minimum
+# is 3552; round up to the next power of two.
+IMAGE_HEADER_SIZE=4096
+
+MCUXSDK?=0
+MCUXPRESSO?=$(PWD)/../NXP/SDK_2_2_0_FRDM-KL26Z
+MCUXPRESSO_CMSIS?=$(MCUXPRESSO)/CMSIS
+MCUXPRESSO_CPU?=MKL26Z128VLH4
+MCUXPRESSO_DRIVERS?=$(MCUXPRESSO)/devices/MKL26Z4
+DEBUG?=0
+VTOR?=1
+CORTEX_M0?=1
+NO_ASM?=0
+EXT_FLASH?=0
+SPI_FLASH?=0
+ALLOW_DOWNGRADE?=0
+NVM_FLASH_WRITEONCE?=1
+WOLFBOOT_VERSION?=0
+V?=0
+SPMATH?=1
+RAM_CODE?=0
+DUALBANK_SWAP?=0
+PKA?=0
+DEBUG_UART?=1
+
+# Cortex-M0+ doesn't support unaligned word accesses. WOLFSSL_USE_ALIGN
+# routes word-sized hash operations through byte-safe code paths when the
+# buffers (e.g. LMS internal hash state) aren't 4-byte aligned.
+CFLAGS_EXTRA+=-DWOLFSSL_USE_ALIGN
+
+# Logical sector = 4 KL26 hardware sectors (1KB each). Required because
+# IMAGE_HEADER_SIZE (4096) must be <= WOLFBOOT_SECTOR_SIZE.
+WOLFBOOT_SECTOR_SIZE?=0x1000
+
+# 128KB flash, 16KB SRAM
+# 32KB bootloader, 44KB boot/update partitions, 4KB swap at last logical sector
+WOLFBOOT_PARTITION_SIZE?=0xB000
+WOLFBOOT_PARTITION_BOOT_ADDRESS?=0x8000
+WOLFBOOT_PARTITION_UPDATE_ADDRESS?=0x13000
+WOLFBOOT_PARTITION_SWAP_ADDRESS?=0x1F000