Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/arch/mips/math-emu/dp_mul.c b/arch/mips/math-emu/dp_mul.c
index aa566e7..09175f4 100644
--- a/arch/mips/math-emu/dp_mul.c
+++ b/arch/mips/math-emu/dp_mul.c
@@ -104,7 +104,7 @@
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
 		break;
 	}
-	/* rm = xm * ym, re = xe+ye basicly */
+	/* rm = xm * ym, re = xe+ye basically */
 	assert(xm & DP_HIDDEN_BIT);
 	assert(ym & DP_HIDDEN_BIT);
 	{