kconfig: move CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED to Kconfig

If this option is enabled, the objects under lib/ directory
are compiled with speed optimization, not size optimization.
(Currently, only used by some Blackfin boards.)

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

configs/bct-brettl2_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BCT_BRETTL2=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf518f-ezbrd_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF518F_EZBRD=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf526-ezbrd_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF526_EZBRD=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf527-ad7160-eval_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF527_AD7160_EVAL=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf527-ezkit-v2_defconfig

 CONFIG_SYS_EXTRA_OPTIONS="BF527_EZKIT_REV_2_1"
 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF527_EZKIT=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf527-ezkit_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF527_EZKIT=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf527-sdp_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF527_SDP=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf533-ezkit_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF533_EZKIT=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf533-stamp_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF533_STAMP=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf537-stamp_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF537_STAMP=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf538f-ezkit_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF538F_EZKIT=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf548-ezkit_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF548_EZKIT=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf561-acvilon_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF561_ACVILON=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/bf561-ezkit_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BF561_EZKIT=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/br4_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_BR4=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/cm-bf527_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_CM_BF527=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/cm-bf533_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_CM_BF533=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/cm-bf537e_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_CM_BF537E=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/cm-bf537u_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_CM_BF537U=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y

configs/cm-bf548_defconfig

 CONFIG_BLACKFIN=y
 CONFIG_TARGET_CM_BF548=y
+CONFIG_CC_OPTIMIZE_LIBS_FOR_SPEED=y