tree 58fbea42170b8db4778787a22994f86a2c5059fb
parent 4febc0847e49559893eb6374b12788501d9a1efc
author Madhukar Pappireddy <madhukar.pappireddy@arm.com> 1611783892 -0600
committer Madhukar Pappireddy <madhukar.pappireddy@arm.com> 1612370193 -0600

libc: Import strtoul from FreeBSD project

From commit: 21571b1d140ae7bb44e94c0afba2ec61456b275b
The coding guidelines[1] in TF-A forbid the use of ato*() functions
in favour of strto*(). However, the TF-A libc does not provide an
implementation of strto*(), making this rule impossible to satisfy.

Also made small changes to fit into TF-A project. Added the source
files to the libc makefile

[1] https://trustedfirmware-a.readthedocs.io/en/latest/process/coding-guidelines.html#libc-functions-that-are-banned-or-to-be-used-with-caution

Change-Id: I8c3b92751d1ce226c966f7c81fedd83f0846865e
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>