AVR: target/120442 - Support f7_fdim / fdiml in LibF7.

	Add Support for fdiml.
	PR target/120442
libgcc/config/avr/libf7/
	* libf7-common.mk (LIBF_C_PARTS, m_ddd): Add fdim.
	* libf7.h (f7_fdim): New proto.
	* libf7.c (f7_fdim): New function.
	* f7renames.sh (f7_fdim): Add rename.
	* f7-wraps.h: Rebuild
	* f7-renames.h: Rebuild

(cherry picked from commit 6045de6596d09f3cf7ae3f552b56d7e5df17a899)
6 files changed