Use python from toolchain instead of local copy

Previous commit used /usr/bin/python to parse a yaml file and that
resulted in CI failures and this patch corrects that by using the
one in toolchain.

Change-Id: I0f3efcab0c0f620a6ddb7b3500aca5694351fe10
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
1 file changed