SP_CFLAGS and SP_LDFLAGS are only used as initial values for ARCH_CFLAGS/ARCH_LDFLAGS.  Call it directly ARCH_*.  Once there, use the same indentantion that the rest of the file
Signed-off-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>