MIPS: Fix build with DEBUG_ZBOOT and MACH_JZ4770

The debug definitions were missing for MACH_JZ4770, resulting in a build
failure when DEBUG_ZBOOT was set.

Since the UART addresses are the same across all Ingenic SoCs, we just
use a #ifdef CONFIG_MACH_INGENIC instead of checking for individual
Ingenic SoCs.

Additionally, I added a #define for the UART0 address in-code and
dropped the <asm/mach-jz4740/base.h> include, for the reason that this
include file is slowly being phased out as the whole platform is being
moved to devicetree.

Fixes: 9be5f3e92ed5 ("MIPS: ingenic: Initial JZ4770 support")
Signed-off-by: Paul Cercueil <[e-mail]>
Cc: Ralf Baechle <[e-mail]>
Cc: [e-mail]
Cc: <[e-mail]> # 4.16
Patchwork: https://patchwork.linux-mips.org/patch/18957/
Signed-off-by: James Hogan <[e-mail]>

arch/mips/boot/compressed/uart-16550.c

···
 #define PORT(offset) (CKSEG1ADDR(AR7_REGS_UART0) + (4 * offset))
 #endif
 
-#if defined(CONFIG_MACH_JZ4740) || defined(CONFIG_MACH_JZ4780)
-#include <asm/mach-jz4740/base.h>
-#define PORT(offset) (CKSEG1ADDR(JZ4740_UART0_BASE_ADDR) + (4 * offset))
+#ifdef CONFIG_MACH_INGENIC
+#define INGENIC_UART0_BASE_ADDR	0x10030000
+#define PORT(offset) (CKSEG1ADDR(INGENIC_UART0_BASE_ADDR) + (4 * offset))
 #endif
 
 #ifdef CONFIG_CPU_XLR