scripts: build-all: Build all defconfigs

Build all the defconfigs that have been changed on msm-3.18 in
the last year. This introduces a few new configs that aren't
currently being built and tested:

	msmcortex-perf_defconfig
	msmcortex_defconfig
	sdx-perf_defconfig
	sdx_defconfig
	apq8053_IoE-perf_defconfig

Change-Id: I2d55e758b9ff9dacada11aa0c04b8186abaaba38
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>