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H A Dplatform.mke4ee1ab934e24f644f16935ab2007e36cbabd361 Fri Apr 10 16:51:54 UTC 2020 Etienne Carriere <etienne.carriere@st.com> stm32mp1: disable neon in sp_min

Disable use of Neon VFP support for platform stm32mp1 when
building with SP_MIN runtime services as these can conflict with
non-secure world use of NEON support. This is preferred over a
systematic backup/restore of NEON context when switching
between non-secure and secure worlds.

When NEON support is disabled, this is done for both BL2 and BL32 as
build process uses common libraries built once for both binaries.

Change-Id: I4e8808dcb6ef58fc839e6f85fd6e45cfbaa34be0
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>