general code cleanup on lbmk shell scripts

in update/blobs/download, i saw instances where
appdir was being deleted with rm -r, but the more
appropriate command would rm -Rf. this is now fixed.

other than that, i've mostly just simplified a bunch
of if statements and consolidated some duplicated
logic (e.g. if/else block for dependencies in
build_dependencies() of update/blobs/download

one or two functions and/or variables have been
renamed, for greater clarity in the code, also
removed a few messages that were redundant

used printf instead of echo, in a few places, also
fixed up the indentation in a few places

Signed-off-by: Leah Rowe <leah@libreboot.org>

resources/scripts/handle/config/file

@@ -89,9 +89,8 @@ main()
 		target="${x}"
 		printf "Running 'make %s' for project '%s, target '%s''\n" \
 		    "${mode}" "${project}" "${target}"
-		if [ "${project}" = "coreboot" ] && [ "${mode}" = "all" ]; then
+		[ "${project}" != "coreboot" ] || [ "${mode}" != "all" ] || \
 			./update blobs download ${target} || err "blobutil"
-		fi
 		handle_defconfig || exit 1
 	done
 
@@ -166,35 +165,29 @@ check_cross_compiler()
 		    err "check_cross_compiler"
 
 	if [ "${arch}" = "x86_32" ] || [ "${arch}" = "x86_64" ]; then
-		if [ ! -d "${cbdir}/util/crossgcc/xgcc/i386-elf/" ]; then
-			# Even for 64-bit machines, coreboot builds 32-bit ROM
-			# images, so we only need to worry about i386-elf
+		[ -d "${cbdir}/util/crossgcc/xgcc/i386-elf/" ] || \
 			make -C "${cbdir}" crossgcc-i386 CPUS=$(nproc) || \
 			    return 1
-		fi
 		case "$(uname -m)" in
 			x86*|i*86|amd64) : ;;
 			*) export CROSS_COMPILE=i386-elf- ;;
 		esac
 	elif [ "${arch}" = "ARMv7" ]; then
-		if [ ! -d "${cbdir}/util/crossgcc/xgcc/arm-eabi/" ]; then
+		[ -d "${cbdir}/util/crossgcc/xgcc/arm-eabi/" ] || \
 			make -C "${cbdir}" crossgcc-arm CPUS=$(nproc) || \
 			    return 1
-		fi
 		case "$(uname -m)" in
 			arm|arm32|armv6*|armv7*) : ;;
 			*) export CROSS_COMPILE=arm-eabi- ;;
 		esac
 	elif [ "${arch}" = "AArch64" ]; then
-		if [ ! -d "${cbdir}/util/crossgcc/xgcc/aarch64-elf/" ]; then
+		[ -d "${cbdir}/util/crossgcc/xgcc/aarch64-elf/" ] || \
 			make -C "${cbdir}" crossgcc-aarch64 CPUS=$(nproc) || \
 			    return 1
-		fi
 		# aarch64 also needs armv7 toolchain for arm-trusted-firmware
-		if [ ! -d "${cbdir}/util/crossgcc/xgcc/arm-eabi/" ]; then
+		[ -d "${cbdir}/util/crossgcc/xgcc/arm-eabi/" ] || \
 			make -C "${cbdir}" crossgcc-arm CPUS=$(nproc) || \
 			    return 1
-		fi
 		case "$(uname -m)" in
 			arm64|aarch64) : ;;
 			*) export CROSS_COMPILE=aarch64-elf- ;;