configs: Re-sync CONFIG_USB_MUSB_HOST

Now that CONFIG_USB_MUSB_HOST is part of Kconfig, migrate that over to
the defconfig files.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/pengwyn_defconfig b/configs/pengwyn_defconfig
index d04471b..4aead9e 100644
--- a/configs/pengwyn_defconfig
+++ b/configs/pengwyn_defconfig
@@ -8,6 +8,7 @@
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
+CONFIG_USB_MUSB_HOST=y
 CONFIG_USB_MUSB_GADGET=y
 CONFIG_USB_GADGET=y
 CONFIG_OF_LIBFDT=y