Add new port layer for Cortex-A devices without the means to mask interrupt priorities.

git-svn-id: http://svn.code.sf.net/p/freertos/code/trunk@2273 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
SAMA5D3 Xplained demo blinky running.

git-svn-id: http://svn.code.sf.net/p/freertos/code/trunk@2274 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Rename ARM_CAx_No_GIC ARM_CA5_No_GIC and add FreeRTOSConfig setting to specify the number of registers in the FPU unit.

git-svn-id: http://svn.code.sf.net/p/freertos/code/trunk@2275 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
Add 'full' demo to the SAMA5 Xplained demo - but so far without interrupt nesting tests or CLI.

git-svn-id: http://svn.code.sf.net/p/freertos/code/trunk@2276 1d2547de-c912-0410-9cb9-b8ca96c0e9e2