Set endianness and floating point flags explicitly for MIPS targets

The tree can be build with an external toolchain that will not
necessarily default to desired settings, so we have to specify
the required flags explicitly to force the required compilation
mode.

Reviewed by:	adrian, br
Sponsored by:	https://reviews.freebsd.org/D8505

share/mk/bsd.cpu.mk

@@ -303,9 +303,22 @@ MACHINE_CPU = v9 ultrasparc ultrasparc3
 
 .if ${MACHINE_CPUARCH} == "mips"
 CFLAGS += -G0
-.if ${MACHINE_ARCH:Mmips*hf}
+. if ${MACHINE_ARCH:Mmips*el*} != ""
+ACFLAGS += -EL
+AFLAGS += -EL
+CFLAGS += -EL
+LDFLAGS += -EL
+. else
+ACFLAGS += -EB
+AFLAGS += -EB
+CFLAGS += -EB
+LDFLAGS += -EB
+. endif
+. if ${MACHINE_ARCH:Mmips*hf}
 CFLAGS += -mhard-float
-.endif
+. else
+CFLAGS += -msoft-float
+. endif
 .endif
 
 ########## arm