fix(build): fix arch32 build issue for clang

Fixed the qemu 32 bit clang build fail caused because of
no march32 directives in TF_CFLAGS_aarch32 variable

march32_directive is initialized later in Makefile and since clang build
uses Immediate set instead of Lazy set , TF_CFLAGS_aarch32 doesn't
have mcpu variable.

Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: I09094a0912ee2d9d0e11f65135a352de8a135936
1 file changed