Extend initial vector table to avoid checksum addr

The LPC43xx/43Sxx family of MCUs will only boot from internal flash
if the boot image contains a valid signature. Valid signatures are
generated by placing the 2's complement of the sum of vector table
entries 0 through 6 at the Cortex-M4's reserved exception vector
location 7. A short initial vector table allows for the incorrect
placement of executable code around the checksum address offset
(0x001C). During flashing of board, OpenOCD's lpc2000 flash driver
will calculate checksum and write it to the forementioned address,
thus corrupting code. In order to avoid code corruption initial
vector table was extended up to Cortex-M4's Systick exception.

bsps/lpc4337_educiaa/bsp/start-ram.S

@@ -32,6 +32,17 @@ __vectors0:
 	.word   hang        /* 2 NMI */
 	.word   hang        /* 3 HardFault */
 	.word   hang        /* 4 MemManage */
+	.word   hang        /* 5 Bus fault. */
+	.word   hang        /* 6 Usage fault. */
+	.word   hang        /* 7 reserved. */
+	.word   hang        /* 8 reserved. */
+	.word   hang        /* 9 reserved. */
+	.word   hang        /* 10 reserved. */
+	.word   hang        /* 11 SVCall. */
+	.word   hang        /* 12 Breakpoint. */
+	.word   hang        /* 13 reserved. */
+	.word   hang        /* 14 PendSV. */
+	.word   hang        /* 15 Systick. */
 
 	.text
 

bsps/lpc4337_educiaa/bsp/start-rom.S

@@ -35,6 +35,17 @@ __vectors0:
 	.word   hang        /* 2 NMI */
 	.word   hang        /* 3 HardFault */
 	.word   hang        /* 4 MemManage */
+	.word   hang        /* 5 Bus fault. */
+	.word   hang        /* 6 Usage fault. */
+	.word   hang        /* 7 reserved. */
+	.word   hang        /* 8 reserved. */
+	.word   hang        /* 9 reserved. */
+	.word   hang        /* 10 reserved. */
+	.word   hang        /* 11 SVCall. */
+	.word   hang        /* 12 Breakpoint. */
+	.word   hang        /* 13 reserved. */
+	.word   hang        /* 14 PendSV. */
+	.word   hang        /* 15 Systick. */
 
 	.text