fix ELF bugs found by iant 	- .text begins at INITTEXT, not 0 	   and does not include HEADR 	- .shstrtab, .gosymtab, .gopclntab have alignment 1 	- .gosymtab, .gopclntab have type SHT_PROGBITS
fix ELF bugs found by iant
	- .text begins at INITTEXT, not 0
	   and does not include HEADR
	- .shstrtab, .gosymtab, .gopclntab have alignment 1
	- .gosymtab, .gopclntab have type SHT_PROGBITS

R=r
DELTA=9  (0 added, 0 deleted, 9 changed)
OCL=15953
CL=15956

tav/go,tav/go,tav/go,tav/go,tav/go,tav/go,tav/go