fixup dwc2: s/printf/puts/ where possible

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
fixup dwc2: use DEFINE_ALIGN_BUFFER rather than open-coded alignment

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
fixup dwc2: use mdelay rather than udelay for large delays

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
fixup dwc2: use errno.h constants

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
fixup dwc2: #define some magic constants

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
fixup rpi_b: enable USB features in config

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>