Fix mftb instruction usage (#1282)

Author: ribbanya

.github/packages/build-linux/Dockerfile

@@ -9,7 +9,7 @@ ARG DEVKITPPC=${DEVKITPRO}/devkitPPC
 ENV DEBIAN_FRONTEND=noninteractive
 ENV LANG=C
 ENV MELEE_COMPILERS_URL='https://files.decomp.dev/compilers_latest.zip'
-ENV BINUTILS_URL='https://github.com/encounter/gc-wii-binutils/releases/download/2.42-0/linux-x86_64.zip'
+ENV BINUTILS_URL='https://github.com/encounter/gc-wii-binutils/releases/download/2.42-1/linux-x86_64.zip'
 ENV WINE=${WIBO_PATH}
 ENV DEVKITPRO=${DEVKITPRO}
 ENV DEVKITPPC=${DEVKITPPC}

asm/MetroTRK/mpc_7xx_603e.s

@@ -25,8 +25,8 @@
 /* 8032A8A8 00327488  7F CE 04 A6 */	mfsr r30, 14
 /* 8032A8AC 0032748C  7F EF 04 A6 */	mfsr r31, 15
 /* 8032A8B0 00327490  BE 02 01 A8 */	stmw r16, 0x1a8(r2)
-/* 8032A8B4 00327494  7D 4C 42 E6 */	.4byte 0x7D4C42E6
-/* 8032A8B8 00327498  7D 6D 42 E6 */	.4byte 0x7D6D42E6
+/* 8032A8B4 00327494  7D 4C 42 E6 */	mftb r10, 268
+/* 8032A8B8 00327498  7D 6D 42 E6 */	mftb r11, 269
 /* 8032A8BC 0032749C  7D 90 FA A6 */	mfspr r12, HID0
 /* 8032A8C0 003274A0  7D B1 FA A6 */	mfspr r13, HID1
 /* 8032A8C4 003274A4  7D DB 02 A6 */	mfsrr1 r14