cp_libs: find library path

library path may not be in gcc/lib directory

Signed-off-by: Nishanth Menon <nm@ti.com>
update kernel rev

Signed-off-by: Nishanth Menon <nm@ti.com>
am35xx_bone_defconfig: change dts location

Signed-off-by: Nishanth Menon <nm@ti.com>
Makefile: SPL build sequencing

messing up SPL and bootloader build from same directory can
result in mess.

Signed-off-by: Nishanth Menon <nm@ti.com>
am35xx_bone_uEnv.txt: boot from MMC card

Signed-off-by: Nishanth Menon <nm@ti.com>