This patch adds mappings from DWARF register numbers to the register
names used by the ARM `Regs and Stack Access API'.

Cc: Jean Pihet <jpihet@mvista.com>
Tested-by: NJamie Iles <jamie.iles@picochip.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>